Table of Contents
- Inspiron Chromebook 7486 Service Manual
- Before working inside your computer
- After working inside your computer
- Safety instructions
- Recommended tools
- Screw list
- Removing the base cover
- Replacing the base cover
- Removing the battery
- Replacing the battery
- Removing the fan
- Replacing the fan
- Removing the heat sink
- Replacing the heat sink
- Removing the I/O board
- Replacing the I/O board
- Removing the speakers
- Replacing the speakers
- Removing the wireless card
- Replacing the wireless card
- Removing the display back cover
- Replacing the display back cover
- Removing the display assembly
- Replacing the display assembly
- Removing the display hinges
- Replacing the display hinges
- Removing the camera
- Replacing the camera
- Removing the display cable
- Replacing the display cable
- Removing the display panel
- Replacing the display panel
- Removing the system board
- Replacing the system board
- Removing the palm-rest and keyboard assembly
- Replacing the palm-rest and keyboard assembly
- Technology and components
- Software
- Troubleshooting
DELL 7486 User Manual
Displayed below is the user manual for 7486 by DELL which is a product in the Notebooks category. This manual has pages.
Related Manuals
Inspiron Chromebook 7486
Service Manual
Computer Model: Inspiron Chromebook 7486
Regulatory Model: P94G
Regulatory Type: P94G001
Notes, cautions, and warnings
NOTE: A NOTE indicates important information that helps you make better use of your product.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
© 2018 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks
may be trademarks of their respective owners.
2018 - 09
Rev. A00
Contents
1 Before working inside your computer............................................................................................................. 7
Before you begin ................................................................................................................................................................7
2 After working inside your computer............................................................................................................... 8
3 Safety instructions........................................................................................................................................ 9
Electrostatic discharge—ESD protection.......................................................................................................................9
ESD eld service kit ........................................................................................................................................................ 10
Components of an ESD eld service kit.................................................................................................................. 10
ESD protection summary ..........................................................................................................................................10
Transporting sensitive components................................................................................................................................ 11
Lifting equipment ........................................................................................................................................................11
4 Recommended tools.....................................................................................................................................12
5 Screw list..................................................................................................................................................... 13
6 Removing the base cover............................................................................................................................. 14
Procedure.......................................................................................................................................................................... 14
7 Replacing the base cover..............................................................................................................................17
Procedure...........................................................................................................................................................................17
8 Removing the battery.................................................................................................................................. 20
Prerequisites..................................................................................................................................................................... 20
Procedure..........................................................................................................................................................................20
9 Replacing the battery.................................................................................................................................. 22
Post-requisites..................................................................................................................................................................22
Procedure..........................................................................................................................................................................22
10 Removing the fan....................................................................................................................................... 24
Prerequisites..................................................................................................................................................................... 24
Procedure..........................................................................................................................................................................24
11 Replacing the fan........................................................................................................................................ 25
Procedure..........................................................................................................................................................................25
Post-requisites..................................................................................................................................................................25
12 Removing the heat sink.............................................................................................................................. 26
Prerequisites..................................................................................................................................................................... 26
Procedure..........................................................................................................................................................................26
13 Replacing the heat sink...............................................................................................................................27
Contents 3
Procedure..........................................................................................................................................................................27
Post-requisites..................................................................................................................................................................27
14 Removing the I/O board............................................................................................................................. 28
Prerequisites..................................................................................................................................................................... 28
Procedure..........................................................................................................................................................................28
15 Replacing the I/O board............................................................................................................................. 30
Procedure..........................................................................................................................................................................30
Post-requisites.................................................................................................................................................................. 31
16 Removing the speakers.............................................................................................................................. 32
Prerequisites..................................................................................................................................................................... 32
Procedure..........................................................................................................................................................................32
17 Replacing the speakers...............................................................................................................................33
Procedure..........................................................................................................................................................................33
Post-requisites..................................................................................................................................................................33
18 Removing the wireless card........................................................................................................................34
Prerequisites..................................................................................................................................................................... 34
Procedure..........................................................................................................................................................................34
19 Replacing the wireless card........................................................................................................................ 36
Procedure..........................................................................................................................................................................36
Post-requisites..................................................................................................................................................................36
20 Removing the display back cover............................................................................................................... 37
Prerequisites..................................................................................................................................................................... 37
Procedure..........................................................................................................................................................................37
21 Replacing the display back cover................................................................................................................38
Procedure..........................................................................................................................................................................38
Post-requisites..................................................................................................................................................................38
22 Removing the display assembly..................................................................................................................39
Prerequisites..................................................................................................................................................................... 39
Procedure..........................................................................................................................................................................39
23 Replacing the display assembly..................................................................................................................40
Procedure..........................................................................................................................................................................40
Post-requisites..................................................................................................................................................................40
24 Removing the display hinges.......................................................................................................................41
Prerequisites......................................................................................................................................................................41
Procedure.......................................................................................................................................................................... 41
25 Replacing the display hinges...................................................................................................................... 42
4Contents
Procedure .........................................................................................................................................................................42
Post-requisites..................................................................................................................................................................42
26 Removing the camera................................................................................................................................ 43
Prerequisites..................................................................................................................................................................... 43
Procedure..........................................................................................................................................................................43
27 Replacing the camera.................................................................................................................................44
Procedure .........................................................................................................................................................................44
Post-requisites..................................................................................................................................................................44
28 Removing the display cable........................................................................................................................45
Prerequisites..................................................................................................................................................................... 45
Procedure..........................................................................................................................................................................45
29 Replacing the display cable........................................................................................................................46
Procedure..........................................................................................................................................................................46
Post-requisites..................................................................................................................................................................46
30 Removing the display panel........................................................................................................................47
Prerequisites..................................................................................................................................................................... 47
Procedure..........................................................................................................................................................................47
31 Replacing the display panel........................................................................................................................ 48
Procedure..........................................................................................................................................................................48
Post-requisites..................................................................................................................................................................48
32 Removing the system board.......................................................................................................................49
Prerequisites..................................................................................................................................................................... 49
Procedure..........................................................................................................................................................................49
33 Replacing the system board........................................................................................................................51
Procedure.......................................................................................................................................................................... 51
Post-requisites..................................................................................................................................................................52
34 Removing the palm-rest and keyboard assembly....................................................................................... 53
Prerequisites..................................................................................................................................................................... 53
Procedure..........................................................................................................................................................................53
35 Replacing the palm-rest and keyboard assembly........................................................................................54
Procedure..........................................................................................................................................................................54
Post-requisites..................................................................................................................................................................54
36 Technology and components..................................................................................................................... 55
Special keys...................................................................................................................................................................... 55
Keyboard keys function.............................................................................................................................................55
Touchpad gestures...........................................................................................................................................................57
Bluetooth...........................................................................................................................................................................57
Contents 5
37 Software....................................................................................................................................................58
Operating system.............................................................................................................................................................58
Chrome OS.................................................................................................................................................................58
Veried Boot...............................................................................................................................................................59
Disk Partition Map..................................................................................................................................................... 60
Developer and Recovery mode.................................................................................................................................61
Coreboot and U-boot Custom Firmware.................................................................................................................61
Chrome vs Chromium OS......................................................................................................................................... 62
View system information.................................................................................................................................................62
38 Troubleshooting......................................................................................................................................... 66
Basic troubleshooting......................................................................................................................................................66
Power issues...............................................................................................................................................................66
CROSH..............................................................................................................................................................................70
CROSH commands.......................................................................................................................................................... 71
Commonly used CROSH command...............................................................................................................................73
Check battery charging status................................................................................................................................. 73
Chrome commands......................................................................................................................................................... 80
Reset Inspiron Chromebook........................................................................................................................................... 85
Recovering the Inspiron Chromebook...........................................................................................................................90
Step 1-Check for the Chrome OS is missing or damaged message.....................................................................91
Step 2-Create the recovery USB ash drive or SD card....................................................................................... 91
Reinstall the Chrome Operating System.................................................................................................................92
Chrome OS verication is turned o Message...................................................................................................... 92
Troubleshooting Tips..................................................................................................................................................92
6Contents
Before working inside your computer
NOTE: The images in this document may dier from your computer depending on the conguration you ordered.
Before you begin
1 Save and close all open les and exit all open applications.
2 Shut down your computer. Click Start > Power > Shut down.
NOTE: If you are using a dierent operating system, see the documentation of your operating system for shut-down
instructions.
3 Disconnect your computer and all attached devices from their electrical outlets.
4 Disconnect all attached network devices and peripherals, such as keyboard, mouse, and monitor from your computer.
5 Remove any media card and optical disc from your computer, if applicable.
1
Before working inside your computer 7
After working inside your computer
CAUTION: Leaving stray or loose screws inside your computer may severely damage your computer.
1 Replace all screws and ensure that no stray screws remain inside your computer.
2 Connect any external devices, peripherals, or cables you removed before working on your computer.
3 Replace any media cards, discs, or any other parts that you removed before working on your computer.
4 Connect your computer and all attached devices to their electrical outlets.
5 Turn on your computer.
2
8 After working inside your computer
Safety instructions
Use the following safety guidelines to protect your computer from potential damage and ensure your personal safety.
WARNING: Before working inside your computer, read the safety information that shipped with your computer. For more safety
best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance.
WARNING: Disconnect all power sources before opening the computer cover or panels. After you nish working inside the
computer, replace all covers, panels, and screws before connecting to the electrical outlet.
CAUTION: To avoid damaging the computer, ensure that the work surface is at and clean.
CAUTION: To avoid damaging the components and cards, handle them by their edges, and avoid touching pins and contacts.
CAUTION: You should only perform troubleshooting and repairs as authorized or directed by the Dell technical assistance team.
Damage due to servicing that is not authorized by Dell is not covered by your warranty. See the safety instructions that shipped
with the product or at www.dell.com/regulatory_compliance.
CAUTION: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the
metal at the back of the computer. While you work, periodically touch an unpainted metal surface to dissipate static electricity,
which could harm internal components.
CAUTION: When you disconnect a cable, pull on its connector or on its pull tab, not on the cable itself. Some cables have
connectors with locking tabs or thumb-screws that you must disengage before disconnecting the cable. When disconnecting
cables, keep them evenly aligned to avoid bending any connector pins. When connecting cables, ensure that the ports and
connectors are correctly oriented and aligned.
CAUTION: Press and eject any installed card from the media-card reader.
Electrostatic discharge—ESD protection
ESD is a major concern when you handle electronic components, especially sensitive components such as expansion cards, processors,
memory DIMMs, and system boards. Very slight charges can damage circuits in ways that may not be obvious, such as intermittent
problems or a shortened product life span. As the industry pushes for lower power requirements and increased density, ESD protection is an
increasing concern.
Due to the increased density of semiconductors used in recent Dell products, the sensitivity to static damage is now higher than in previous
Dell products. For this reason, some previously approved methods of handling parts are no longer applicable.
Two recognized types of ESD damage are catastrophic and intermittent failures.
•Catastrophic – Catastrophic failures represent approximately 20 percent of ESD-related failures. The damage causes an immediate and
complete loss of device functionality. An example of catastrophic failure is a memory DIMM that has received a static shock and
immediately generates a "No POST/No Video" symptom with a beep code emitted for missing or nonfunctional memory.
•Intermittent – Intermittent failures represent approximately 80 percent of ESD-related failures. The high rate of intermittent failures
means that most of the time when damage occurs, it is not immediately recognizable. The DIMM receives a static shock, but the
tracing is merely weakened and does not immediately produce outward symptoms related to the damage. The weakened trace may
take weeks or months to melt, and in the meantime may cause degradation of memory integrity, intermittent memory errors, etc.
The more dicult type of damage to recognize and troubleshoot is the intermittent (also called latent or "walking wounded") failure.
Perform the following steps to prevent ESD damage:
• Use a wired ESD wrist strap that is properly grounded. The use of wireless anti-static straps is no longer allowed; they do not provide
adequate protection. Touching the chassis before handling parts does not ensure adequate ESD protection on parts with increased
sensitivity to ESD damage.
3
Safety instructions 9
• Handle all static-sensitive components in a static-safe area. If possible, use anti-static oor pads and workbench pads.
• When unpacking a static-sensitive component from its shipping carton, do not remove the component from the anti-static packing
material until you are ready to install the component. Before unwrapping the anti-static packaging, ensure that you discharge static
electricity from your body.
• Before transporting a static-sensitive component, place it in an anti-static container or packaging.
ESD eld service kit
The unmonitored Field Service kit is the most commonly used service kit. Each Field Service kit includes three main components: anti-static
mat, wrist strap, and bonding wire.
Components of an ESD eld service kit
The components of an ESD eld service kit are:
•Anti-Static Mat – The anti-static mat is dissipative and parts can be placed on it during service procedures. When using an anti-static
mat, your wrist strap should be snug and the bonding wire should be connected to the mat and to any bare metal on the system being
worked on. Once deployed properly, service parts can be removed from the ESD bag and placed directly on the mat. ESD-sensitive
items are safe in your hand, on the ESD mat, in the system, or inside a bag.
•Wrist Strap and Bonding Wire – The wrist strap and bonding wire can be either directly connected between your wrist and bare metal
on the hardware if the ESD mat is not required, or connected to the anti-static mat to protect hardware that is temporarily placed on
the mat. The physical connection of the wrist strap and bonding wire between your skin, the ESD mat, and the hardware is known as
bonding. Use only Field Service kits with a wrist strap, mat, and bonding wire. Never use wireless wrist straps. Always be aware that the
internal wires of a wrist strap are prone to damage from normal wear and tear, and must be checked regularly with a wrist strap tester
in order to avoid accidental ESD hardware damage. It is recommended to test the wrist strap and bonding wire at least once per week.
•ESD Wrist Strap Tester – The wires inside of an ESD strap are prone to damage over time. When using an unmonitored kit, it is a best
practice to regularly test the strap prior to each service call, and at a minimum, test once per week. A wrist strap tester is the best
method for doing this test. If you do not have your own wrist strap tester, check with your regional oce to nd out if they have one.
To perform the test, plug the wrist-strap's bonding-wire into the tester while it is strapped to your wrist and push the button to test. A
green LED is lit if the test is successful; a red LED is lit and an alarm sounds if the test fails.
•Insulator Elements – It is critical to keep ESD sensitive devices, such as plastic heat sink casings, away from internal parts that are
insulators and often highly charged.
•Working Environment – Before deploying the ESD Field Service kit, assess the situation at the customer location. For example,
deploying the kit for a server environment is dierent than for a desktop or portable environment. Servers are typically installed in a rack
within a data center; desktops or portables are typically placed on oce desks or cubicles. Always look for a large open at work area
that is free of clutter and large enough to deploy the ESD kit with additional space to accommodate the type of system that is being
repaired. The workspace should also be free of insulators that can cause an ESD event. On the work area, insulators such as Styrofoam
and other plastics should always be moved at least 12 inches or 30 centimeters away from sensitive parts before physically handling any
hardware components.
•ESD Packaging – All ESD-sensitive devices must be shipped and received in static-safe packaging. Metal, static-shielded bags are
preferred. However, you should always return the damaged part using the same ESD bag and packaging that the new part arrived in.
The ESD bag should be folded over and taped shut and all the same foam packing material should be used in the original box that the
new part arrived in. ESD-sensitive devices should be removed from packaging only at an ESD-protected work surface, and parts should
never be placed on top of the ESD bag because only the inside of the bag is shielded. Always place parts in your hand, on the ESD mat,
in the system, or inside an anti-static bag.
•Transporting Sensitive Components – When transporting ESD sensitive components such as replacement parts or parts to be
returned to Dell, it is critical to place these parts in anti-static bags for safe transport.
ESD protection summary
It is recommended that all eld service technicians use the traditional wired ESD grounding wrist strap and protective anti-static mat at all
times when servicing Dell products. In addition, it is critical that technicians keep sensitive parts separate from all insulator parts while
performing service and that they use anti-static bags for transporting sensitive components.
10 Safety instructions
Transporting sensitive components
When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in
anti-static bags for safe transport.
Lifting equipment
Adhere to the following guidelines when lifting heavy weight equipment:
CAUTION: Do not lift greater than 50 pounds. Always obtain additional resources or use a mechanical lifting device.
1 Get a rm balanced footing. Keep your feet apart for a stable base, and point your toes out.
2 Tighten stomach muscles. Abdominal muscles support your spine when you lift, osetting the force of the load.
3 Lift with your legs, not your back.
4 Keep the load close. The closer it is to your spine, the less force it exerts on your back.
5 Keep your back upright, whether lifting or setting down the load. Do not add the weight of your body to the load. Avoid twisting your
body and back.
6 Follow the same techniques in reverse to set the load down.
Safety instructions 11
Recommended tools
The procedures in this document may require the following tools:
• Philips screwdriver #1
• Flat-head screwdriver
• Plastic scribe
4
12 Recommended tools
Screw list
NOTE: Screw color may vary with the conguration ordered.
Table 1. Screw list
Component Secured to Screw type Quantity Screw image
Base cover Palm-rest and keyboard
assembly
M2x6 7
Battery Palm-rest and keyboard
assembly
M2x3 4
Battery-cable bracket System board M2x4 2
Fan Palm-rest and keyboard
assembly
M2x4 2
I/O board Palm-rest and keyboard
assembly
M2x4 1
USB Type-C bracket I/O board M2x4 2
Wireless-card bracket System board M2x3 1
Display hinges Palm-rest and keyboard
assembly
M2.5x5 4
Display hinges Display-panel and antenna
assembly
M2.5x2.5 6
Display hinges Display-panel and antenna
assembly
M2x3 2
Display-cable bracket System board M2x4 2
Camera Display-panel and antenna
assembly
M2x3 2
USB Type-C bracket System board M2x4 2
System board Palm-rest and keyboard
assembly
M2x3 2
5
Screw list 13
Removing the base cover
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Procedure
1 Loosen the three captive screws that secure the base cover to the palm-rest and keyboard assembly.
2 Remove the seven screws (M2x6) that secure the base cover to the palm-rest and keyboard assembly.
3 Using your ngertips, pry up the base cover to release the tabs from the slots on the palm-rest and keyboard assembly.
6
14 Removing the base cover
4 Remove the base cover carefully o the palm-rest and keyboard assembly.
NOTE: The following steps are applicable only if you want to further remove any other component from your computer.
5 Remove the two screws (M2x4) that secure the battery-cable bracket to the palm-rest and keyboard assembly.
6 Remove the battery-cable bracket from the palm-rest and keyboard assembly.
7 Using the pull-tab disconnect the battery cable from the system board.
Removing the base cover 15
16 Removing the base cover
Replacing the base cover
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Procedure
1 Connect the battery cable to the system board, if applicable.
2 Align the screw holes on the battery-cable bracket with the screw holes on the palm-rest and keyboard assembly.
3 Replace the two screws (M2x4) that secure the battery-cable bracket to the palm-rest and keyboard assembly.
7
Replacing the base cover 17
4 Align the base cover with the palm-rest and keyboard assembly.
5 Carefully snap the base cover onto the palm-rest and keyboard assembly.
6 Replace the six screws (M2x6) that secure the base cover to the palm-rest and keyboard assembly.
7 Tighten the three captive screws that secure the base cover to the palm-rest and keyboard assembly.
18 Replacing the base cover
Replacing the base cover 19
Removing the battery
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Prerequisites
Remove the base cover.
Procedure
1 Disconnect the battery cable from the system board (applicable only if not disconnected earlier).
2 Remove the two screws (M2x4) that secure the battery-cable bracket to the palm-rest and keyboard assembly.
3 Remove the battery-cable bracket from the palm-rest and keyboard assembly.
4 Disconnect the battery cable from the system board.
8
20 Removing the battery
5 Remove the four screws (M2x3) that secure the battery to the palm-rest and keyboard assembly.
6 Lift the battery o the palm-rest and keyboard assembly.
7 Press and hold the power button for ve seconds to ground the computer and drain the ea power.
Removing the battery 21
Replacing the battery
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Post-requisites
Replace the base cover.
Procedure
1 Align the screw holes on the battery with the screw holes on the palm-rest and keyboard assembly.
2 Replace the four screws (M2x3) that secure the battery to the palm-rest and keyboard assembly.
3 Connect the battery cable to the system board.
9
22 Replacing the battery
4 Align the screw holes on the battery-cable bracket with the screw holes on the palm-rest and keyboard assembly.
5 Replace the two screws (M2x4) that secure the battery-cable bracket to the palm-rest and keyboard assembly.
Replacing the battery 23
Removing the fan
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Prerequisites
Remove the base cover.
Procedure
1 Peel o the tape that secures the fan cable to the system board.
2 Disconnect the fan cable from the system board.
3 Remove the two screws (M2x4) that secure the fan to the palm-rest and keyboard assembly.
4 Lift the fan o the palm-rest and keyboard assembly.
10
24 Removing the fan
Replacing the fan
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Procedure
1 Align the screw holes on the fan with the screw holes on the palm-rest and antenna assembly.
2 Replace the two screws (M2x4) that secure the fan to the palm-rest and antenna assembly.
3 Connect the fan cable to the system board.
4 Adhere the tape that secures the fan cable to the system board.
Post-requisites
Replace the base cover.
11
Replacing the fan 25
Removing the heat sink
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
WARNING: The heat sink may become hot during normal operation. Allow sucient time for the heat sink to cool before you
touch it.
CAUTION: For maximum cooling of the processor, do not touch the heat transfer areas on the heat sink. The oils in your skin can
reduce the heat transfer capability of the thermal grease.
Prerequisites
Remove the base cover.
Procedure
1 In reverse order (as indicated on the heat sink), loosen the captive screws that secure the heat sink to the system board.
2 Lift the heat sink o the system board.
12
26 Removing the heat sink
Replacing the heat sink
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
CAUTION: Incorrect alignment of the heat sink can damage the system board and processor.
NOTE: If either the system board or the heat sink is replaced, use the thermal pad provided in the kit to ensure that thermal
conductivity is achieved.
Procedure
1 Align the screw holes on the heat sink with the screw holes on the system board.
2 In sequential order (as indicated on the heat sink), tighten the captive screws that secure the heat sink to the system board.
Post-requisites
Replace the base cover.
13
Replacing the heat sink 27
Removing the I/O board
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Prerequisites
Remove the base cover.
Procedure
1 Peel the tape that secures the I/O-board cable to its connector on the I/O board.
2 Disconnect the I/O-board cable from its connector on the I/O board.
3 Remove the I/O-board cable from the routing guides on the palm-rest and keyboard assembly.
4 Peel the tape that secures the I/O-board cable to the palm-rest and keyboard assembly.
5 Remove the I/O-board cable from the routing guide on the palm-rest and keyboard assembly.
6 Peel the tape that secures the I/O-board cable to its connector on the I/O board.
7 Disconnect the I/O-board cable from its connector on the I/O board.
8 Remove the two screws that secure the USB Type-C bracket to the I/O board.
9 Remove the USB Type-C bracket from the I/O board.
10 Remove the two screws (M2x4) that secure the I/O board to the palm-rest and keyboard assembly.
11 Lift the I/O board o the palm-rest and keyboard assembly.
14
28 Removing the I/O board
Removing the I/O board 29
Replacing the I/O board
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Procedure
1 Align the screw holes on the I/O board with the screw holes on the palm-rest and keyboard assembly.
2 Replace the two screws (M2x4) that secure the I/O board to the palm-rest and keyboard assembly.
3 Align the screw holes on the I/O-board bracket with the screw holes on the I/O board.
4 Replace the two screws (M2x4) that secure the I/O-board bracket to the I/O-board.
5 Connect the cable to the connector on the I/O board.
6 Adhere the tape that secures the cable to the I/O board.
7 Route the cable through the routing guide on the palm-rest and keyboard assembly.
8 Adhere the tape that secures the I/O-board cable to the palm-rest and keyboard assembly.
9 Connect the cable to the connector on the I/O board.
10 Adhere the tape that secures the cable to the I/O board.
11 Route the cable through the routing guide on the palm-rest and keyboard assembly.
15
30 Replacing the I/O board
Removing the speakers
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Prerequisites
Remove the base cover.
Procedure
1 Disconnect the speaker cable from the system board.
2 Remove the speaker cable from the routing guides on the palm-rest and keyboard assembly.
3 Remove the speakers from the alignment posts and lift the speakers o the palm-rest and keyboard assembly.
16
32 Removing the speakers
Replacing the speakers
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Procedure
1 Using the alignment posts on the palm-rest and keyboard assembly, place the speakers on the palm-rest and keyboard assembly.
2 Route the speaker cable through the routing guides on the palm-rest and keyboard assembly.
3 Connect the speaker cable to the system board.
Post-requisites
Replace the base cover.
17
Replacing the speakers 33
Removing the wireless card
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Prerequisites
Remove the base cover.
Procedure
1 Locate the wireless card on the system board.
2 Remove the screw (M2x3) that secures the wireless-card bracket to the wireless card and system board.
3 Remove the wireless-card bracket from the wireless card.
4 Disconnect the antenna cables from the wireless card.
5 Slide and remove the wireless card from the wireless-card slot.
18
34 Removing the wireless card
Removing the wireless card 35
Replacing the wireless card
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Procedure
CAUTION: To avoid damage to the wireless card, do not place any cables under it.
1 Connect the antenna cables to the wireless card.
The following table provides the antenna-cable color scheme for the wireless card supported by your computer.
Table 2. Antenna-cable color scheme
Connectors on the wireless card Antenna-cable color
Main (white triangle) White
Auxiliary (black triangle) Black
2 Align the notch on the wireless card with the tab on the wireless-card slot and insert the wireless card at an angle into the wireless-
card slot.
3 Align the screw hole on the wireless-card bracket with the screw hole on the wireless card and palm-rest assembly.
4 Replace the screw (M2x3) that secures the wireless-card bracket to the wireless card and palm-rest assembly.
Post-requisites
Replace the base cover.
19
36 Replacing the wireless card
Removing the display back cover
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Prerequisites
Remove the base cover.
Procedure
1 Turn the computer over.
2 Using a plastic scribe, pry the display-back cover o the display-panel and antenna assembly.
3 Lift the display-back cover o the display-panel and antenna assembly.
20
Removing the display back cover 37
Replacing the display back cover
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Procedure
1 Align the display-back cover on the display-panel and antenna assembly.
2 Snap the display-back cover onto the display-panel and antenna assembly.
Post-requisites
Replace the base cover.
21
38 Replacing the display back cover
Removing the display assembly
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Prerequisites
1 Remove the base cover.
2 Remove the wireless card.
Procedure
1 Turn the computer over and open the display as far as possible.
CAUTION: Place the computer on a soft and clean surface to avoid scratching the display.
2 Remove the two screws (M2x4) that connect the display-cable bracket to the palm-rest and keyboard assembly.
3 Disconnect the touch-screen board cable from the system board.
4 Open the latch and disconnect the display cable from the system board.
5 Remove the four screws (M2.5x5) that secures the display hinges to the I/O board and system board.
6 Lift the display assembly o the palm-rest assembly.
22
Removing the display assembly 39
Replacing the display assembly
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Procedure
CAUTION: Place the computer on a soft and clean surface to avoid scratching the display.
1 Place the display assembly and align the screw holes on the display hinges with the screw holes on the palm-rest assembly.
2 Replace the four screws (M2.5x5) that secure the display hinges to the I/O board and system board.
3 Connect the display cable to the system board and close the latch to secure the cable.
4 Connect the touch-screen cable to the system board.
5 Align the screw holes on the display-cable bracket with the screw holes on the system board.
6 Replace the two screws (M2x4) that secure the display-cable bracket to the system board.
Post-requisites
1 Replace the wireless card.
2 Replace the base cover.
23
40 Replacing the display assembly
Removing the display hinges
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Prerequisites
1 Remove the base cover.
2 Remove the display back-cover.
Procedure
1 Remove the display cable and antenna cable out from the hinge cover.
2 Remove the antenna cable from the hinge cover.
3 Remove the six screws (M2.5x2.5) that secure the hinges to the display-panel and antenna assembly.
4 Remove the two screws (M2x3) that secure the hinge brackets to the display panel and antenna assembly.
5 Lift the display hinges o the display-panel and antenna assembly.
24
Removing the display hinges 41
Replacing the display hinges
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Procedure
1 Align the screw holes on the display hinges with the screw holes on the display-panel and antenna assembly and replace the two
screws (M2x3).
2 Replace the six screws (M2.5x2.5) that secure the display hinges to the display-panel and antenna assembly.
3 Route the antenna cable to the hinge cover.
4 Route the display cable and antenna cable through the hinge cover.
Post-requisites
1 Replace the display back-cover.
2 Replace the base cover.
25
42 Replacing the display hinges
Removing the camera
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Prerequisites
1 Remove the base cover.
2 Remove the display back-cover.
Procedure
1 Remove the two screws (M2x3) that secures the camera module to the display-panel and antenna assembly.
2 Turn the camera module over.
3 Disconnect the camera cable from the camera.
4 Lift the camera o the display-panel and antenna assembly.
26
Removing the camera 43
Replacing the camera
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Procedure
1 Place the camera module on the display-panel and antenna assembly.
2 Connect the camera cable to the camera module.
3 Turn the camera module over and align the screw holes on the camera module to the screw holes on the display-panel and antenna
assembly.
4 Replace the two screws (M2x3) that secure the camera module to the display-panel and antenna assembly.
Post-requisites
1 Replace the display back-cover.
2 Replace the base cover.
27
44 Replacing the camera
Removing the display cable
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Prerequisites
1 Remove the base cover.
2 Remove the display assembly.
3 Remove the display back-cover.
4 Remove the camera.
Procedure
1 Remove the display cable from the hinge on the display-panel and antenna assembly.
2 Peel the tapes that secure the touch-screen cable and display cable to its connectors on the display-panel and antenna assembly.
3 Peel o the Mylar from the display cable.
4 Disconnect the touch-screen cable from its connector the display-panel and antenna assembly.
5 Open the latch that secures the display cable to its connector on the display-panel and antenna assembly.
6 Disconnect the display cable from the display-panel and antenna assembly.
7 Peel the display cable from the display-panel and antenna assembly
8 Open the latch and disconnect the display cable from the display-panel and antenna assembly.
28
Removing the display cable 45
Replacing the display cable
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Procedure
1 Close the latch and connect the display cable to the display-panel and antenna assembly.
2 Adhere the display cable to the display-panel and antenna assembly.
3 Connect the display cable to its connector on the display-panel and antenna assembly.
4 Close the latch that secures the display cable to the display-panel and antenna assembly.
5 Connect the touch-screen cable to its connector on the display-panel and antenna assembly.
6 Adhere the Mylar to the display-cable connector.
7 Adhere the tape that secures the display cable to the display-panel and keyboard assembly.
8 Route the display cable through the hinge on the display-panel and antenna assembly.
Post-requisites
1 Replace the camera.
2 Replace the display back-cover.
3 Replace the display assembly.
4 Replace the base cover.
29
46 Replacing the display cable
Removing the display panel
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Prerequisites
1 Remove the base cover.
2 Remove the display assembly.
3 Remove the display back-cover.
4 Remove the display hinges.
5 Remove the camera.
6 Remove the display cable.
Procedure
After performing the steps in prerequisites we are left with the display panel.
30
Removing the display panel 47
Replacing the display panel
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Procedure
Place the display panel on a at surface.
Post-requisites
1 Replace the display cable.
2 Replace the camera.
3 Replace the display hinges.
4 Replace the display back-cover.
5 Replace the display assembly.
6 Replace the base cover.
31
48 Replacing the display panel
Removing the system board
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup program
after you replace the system board.
NOTE: Replacing the system board removes any changes you have made to the BIOS using the BIOS setup program. You must
make the appropriate changes again after you replace the system board.
NOTE: Before disconnecting the cables from the system board, note the location of the connectors so that you can reconnect
the cables correctly after you replace the system board.
Prerequisites
1 Remove the base cover.
2 Remove the battery.
3 Remove the heat sink.
Procedure
1 Remove the tape that secures the fan cable to the system board.
2 Disconnect the fan cable from the system board.
3 Remove the tape that secures the I/O-board cable to its connector on the system board.
4 Disconnect the I/O-board cable from its connector on the system bard.
5 Remove the tape that secures the I/O-board cable to its connector on the system board.
6 Disconnect the I/O-board cable from its connector on the system bard.
7 Open the latch and disconnect the keyboard-backlight cable from the system board.
8 Open the latch and disconnect the keyboard cable from the system board.
9 Open the latch and disconnect the touchpad cable from the system board.
10 Disconnect the speaker cable from the system board.
11 Remove the two screws (M2x4) that secure the Type-C bracket to the system board.
12 Remove the two screws that secure the display-cable bracket to the system board.
13 Open the latch and disconnect the display cable from the system board.
14 Disconnect the touch-screen board cable from the system board.
32
Removing the system board 49
15 Remove the two screws (M2x3) that secures the system board to the palm-rest and keyboard assembly.
16 Lift the system board o the palm-rest and keyboard assembly.
50 Removing the system board
Replacing the system board
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup program
after you replace the system board.
NOTE: Replacing the system board removes any changes you have made to the BIOS using the BIOS setup program. You must
make the appropriate changes again after you replace the system board.
Procedure
1 Align the screw holes on the system board with the screw holes on the palm-rest and keyboard assembly.
2 Replace the two screws (M2x3) that secure the system board to the palm-rest and keyboard assembly.
3 Connect the touch-screen board cable from the system board.
4 Close the latch and connect the display cable to the system board.
5 Align the display-cable bracket and replace the two screws that secure the display-cable bracket to the system board.
6 Align the Type-C bracket and remove the two screws (M2x4) that secure the Type-C bracket to the system board.
7 Connect the speaker cable to the system board.
8 Close the latch and connect the touchpad cable to the system board.
9 Close the latch and connect the keyboard cable to the system board.
10 Close the latch and connect the keyboard-backlight cable to the system board.
11 Connect the I/O-board cable to its connector on the system bard.
12 Adhere the tape that secures the I/O-board cable to its connector on the system board.
13 Connect the I/O-board cable to its connector on the system bard.
14 Adhere the tape that secures the I/O-board cable to its connector on the system board.
15 Connect the fan cable to its connector on the system bard.
16 Adhere the tape that secures the fan cable to its connector on the system board.
33
Replacing the system board 51
Removing the palm-rest and keyboard assembly
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Prerequisites
1 Remove the base cover.
2 Remove the battery.
3 Remove the fan.
4 Remove the heat sink.
5 Remove the I/O board.
6 Remove the speakers.
7 Remove the wireless card.
8 Remove the display assembly.
9 Remove the system board.
Procedure
After performing the steps in prerequisites we are left with the palm-rest and keyboard assembly.
34
Removing the palm-rest and keyboard assembly 53
Replacing the palm-rest and keyboard assembly
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Procedure
Place the palm-rest and keyboard assembly on a at surface.
Post-requisites
1 Replace the system board.
2 Replace the display assembly.
3 Replace the wireless card.
4 Replace the speakers.
5 Replace the I/O board.
6 Replace the heat sink.
7 Replace the fan.
8 Replace the battery.
9 Replace the base cover.
35
54 Replacing the palm-rest and keyboard assembly
Technology and components
NOTE: Instructions provided in this section are applicable on computers shipped with Windows 10 operating system. Windows 10
is factory-installed with this computer.
Special keys
Dell Inspiron Chromebook keyboards have extra features to help you browse the web eciently. The keyboard contains a dedicated search
key and a new row of web shortcut keys. A standard USB Windows keyboard can also be used with the Chromebook, using the same
keyboard shortcuts.
Keyboard keys function
The Chromebook keyboard is designed to help you access the features that you need the most. The table below is an overview of the
special keys on the top row of the keyboard:
Table 3. Special keys
Keys Description
Go to the previous page in browser history
Go to the next page in browser history
Reload active page
Enter Immersive mode, which hides the tabs and launcher
Enter Overview mode, which shows all windows
36
Technology and components 55
Keys Description
Decrease brightness
Increase brightness
Mute
Decrease volume
Increase volume
Search applications and the web at the same time. On a Chromebook, this key is on the side, where the Caps Lock key
is normally located.
Lock
Keyboard shortcut keys
Table 4. Shortcut keys
Function Combination keys
Page up Press Alt and the up arrow
Page down Press Alt and the down arrow
Home Press Ctrl+Alt, and the up arrow
End Press, Ctrl+Alt and the down arrow
Delete Press Alt+Backspace
Toggle the bookmark bar Ctrl+Shift+B
Search current webpage Ctrl+F
Open a new tab Ctrl+T
Open a new window Ctrl+N
Open the link you clicked in a new background tab Press Alt and click a link
Switch to next tab Ctrl+Tab
Switch to next window Switch to next window
Sign out of Google Account Ctrl+Shift+Q
Close current tab Ctrl+W
To access the keyboard on the screen and to see more shortcuts, press Ctrl+Alt+?.
56 Technology and components
Touchpad gestures
For more information about touchpad gestures for Inspiron Chromebook, see the Google Chromebook Help at support.google.com.
Bluetooth
This section outlines the instruction to pair a bluetooth device with your Chrome devices.
Bluetooth technology lets you connect devices wirelessly over short distances. To use the Bluetooth accessories with your Inspiron
Chromebook, rst check if your Inspiron Chromebook supports Bluetooth. You will then need to pair it with the accessory.
To see if you can use the Bluetooth accessories with your Inspiron Chromebook, click the status area in the lower right corner, where your
account picture appears. If you see the Bluetooth icon or in the menu, your Inspiron Chromebook supports Bluetooth. If you do
not see either of these icons, your Inspiron Chromebook does not support Bluetooth. If your Inspiron Chromebook supports Bluetooth, it
can connect to a wide range of the Bluetooth accessories, including the following:
• Keyboards
• Mice
• Speakers
• Headphones
• Headsets (audio only)
To connect a Bluetooth device with your Inspiron Chromebook, you need to pair them.
1 Sign in to your Inspiron Chromebook.
2 Click the status area in the lower-right corner, where your account picture appears.
3 Select your Bluetooth status in the menu that appears.
4 If Bluetooth is disconnected, click the disconnected icon or click Enable Bluetooth in the menu. Your Inspiron Chromebook will
automatically scan for available Bluetooth devices.
5 Select the device you want to add from the list of available Bluetooth devices and click Connect.
6 Follow the instructions on screen to connect your Bluetooth device.
• If you are connecting a mouse, no PIN is normally required. If you are prompted for a PIN, enter the PIN for your mouse using your
Chrome device's keyboard.
• If you are connecting a keyboard, enter the randomly generated PIN on the keyboard you wish to pair and press Enter.
To conrm that your Bluetooth device is connected, check the Bluetooth status. You should see your device listed there.
NOTE: If you are turning on your chrome device for the rst time and you have a Bluetooth device nearby that is also turned on,
your chrome device may automatically detect the device and show you steps to pair it. You will see these instructions only if your
chrome device does not already have a similar device connected or its functionality is not built in, like a keyboard or trackpad.
Technology and components 57
Software
This chapter details the supported operating systems along with instructions on how to install the drivers.
Operating system
This page contains information about the operating system used by the Dell Inspiron Chromebook.
Chrome OS
Inspiron Chromebooks are powered by the Google Chrome operating system, based on Google's popular Chrome browser. It has been
developed to provide a fast, simple, and more secure computing experience for users who spend most of their time online.
Key Benets
• Speed
• Simplicity
• Security
• Updatability
• Syncronisability
• High power at low cost
• Easy to learn and use
• Documents, calendar, e-mail, contacts, and tasks available online and oine, and all securely backed-up and synchronised in the cloud.
• Access to the Chrome web app store
• Killer web apps
• The latest Intel Core processors
37
58 Software
• Fun games
• Built-in support for popular le types and external devices
For more information about the Chrome OS, please visit the Chrome OS training page.
Veried Boot
Read Only rmware veries the integrity of Read/Write (R/W) rmware. R/W rmware veries the active Linux kernel. During run time,
the kernel veries each block read from disk.
If a verication step fails and there is no backup option, the machine enters recovery mode.
The Developer Mode switch turns o veried boot (at the Kernel stage) to enable users to run Chromium OS (or other OS). The BIOS is
always veried.
Software 59
Disk Partition Map
There are two copies of Chrome OS on disk: an active copy and a backup copy. Each copy consists of a kernel partition and a root le
system. The backup copy is updated automatically in the background. Users only need to reboot. The partition contains encrypted user
data and is also used in the factory for storing test software.
60 Software
Developer and Recovery mode
Table 5. Developer and Recovery mode
Developer Mode Recovery Mode
• Used to boot without verication.
• Can be turned on via key combination during boot.
• Stateful partition is wiped during transitions.
• Used in the factory to boot test image.
• Allows a user to reinstall the Chrome OS from a USB key or SD
card.
• Recovery mode is entered if veried boot fails.
• A user can force recovery mode via a key combination during
boot.
Coreboot and U-boot Custom Firmware
Coreboot (x86 only)
• Memory and chipset initialization
• Open-source, except for MRC binary from Intel.
U-Boot
• Performs veried boot
• Handles recovery and Developer Mode
• Open source code
Normal boot is very fast, as it takes less than 1 second to start loading kernel. Inspiron Chromebook does not boot other operating systems
such as Windows or OS X.
Software 61
Chrome vs Chromium OS
Table 6. Dierence between Chromium and Chrome OS
Chromium OS Chrome OS
• Is an open source project: http://www.chromium.org/
chromium-os
• Runs on regular PCs and Chrome devices
• Is based on Chromium OS
• Only runs on the Chrome devices with required hardware
features (TPM, RO rmware, recovery button, developer
switch).
• Includes additional licensed features such as the Netix plugin,
video codecs, and fonts
View system information
This page contains all the information about viewing system information for the Dell Inspiron Chromebook.
Dell Inspiron Chromebook does not support Dell BIOS. Hence, there are several ways to check system specications depending on the
information you are searching for. The table below lists some of the most commonly used methods to view system information and
specications.
62 Software
Table 7. View system information
Commands Action and Purpose Screenshot
chrome://help View basic OS information.
chrome://settings View information such as
screen resolution options
(Device>Display settings),
touchpad, and other basic
hardware information.
Software 63
Commands Action and Purpose Screenshot
chrome://system View advanced system
information such as the Google
Chrome version, BIOS
information, CPU information,
memory information, network
status, power supply
information, etc.
64 Software
Commands Action and Purpose Screenshot
chrome://net-
internals/#export
View advanced networking
information.
Software 65
Troubleshooting
Basic troubleshooting
This page contains all the information for Inspiron Chromebook basic troubleshooting.
NOTE: Refer to Google Help Center for the online troubleshooter.
NOTE: Resetting the Inspiron Chromebook, also known as Powerwash, can be attempted before Recovering the Inspiron
Chromebook. Recovering the Inspiron Chromebook is the last resort.
Power issues
Table 8. Power issue
Issue Possible solutions
Inspiron Chromebook would not Power On or charge If the Inspiron Chromebook will not turn on, follow these steps:
1 Remove all external devices.
a If the Inspiron Chromebook starts, reconnect devices
one at a time while restarting the computer to gure out
which device is causing the problem. You are done.
b If the Inspiron Chromebook still does not start or exhibits
the same problem, do not reconnect anything, and
continue troubleshooting.
2 The battery might have gone into a deep discharge state. Plug
the Inspiron Chromebook into the AC adapter and let it charge
for at least 30 minutes and try turning it on again.
NOTE: Google Chromebook Help recommends a
charge time of 30 minutes. For further information,
see Chromebook won't turn on or won't
chargeunder the System problems section on
support.google.com.
NOTE: When a new Inspiron Chromebook is used
for the rst time, the battery is still in shipping
mode. To resolve this issue, turn o the Inspiron
Chromebook and plug in the AC adapter and turn on
the Inspiron Chromebook again.
3 Depending on the Inspiron Chromebook you have, you may
see a power indicator light close to the charging port. If you
have let the Inspiron Chromebook charge and the light is not
coming on, perform a hard reset.
NOTE: You can perform a hard reset by pressing
Refresh + Power.
4 Use a dierent AC adapter with the same power voltage.
5 Remove the AC adapter, and turn on with the battery power
only.
38
66 Troubleshooting
Display issue
Table 9. Display issue
Issue Possible solutions
Screen is Blank If the Inspiron Chromebook's screen is blank, try the following
troubleshooting steps to resolve the issue, checking to see if the
screen turns on after each step:
1 Make sure the Inspiron Chromebook is on. If you are using the
battery, plug the Inspiron Chromebook in and press the power
button.
2 Restart the Inspiron Chromebook by holding the power button
down until the device turns o, then turn it back on again.
3 Reset or Recover the Inspiron Chromebook.
Audio, screen, and camera issues
Table 10. Audio, screen, and camera issues
Issue Possible solutions
Audio issues If you hear static, or the volume from the speakers is low when
attempting to listen to audio:
1 Make sure the device is not muted. Try adjusting the volume.
2 Try rebooting the Inspiron Chromebook.
3 Try playing audio from various sources, including YouTube and
audio les stored locally on the Inspiron Chromebook.
If the speakers are not responding when attempting to listen to
audio:
1 Unplug the device from all cables (USB, headphones, and
displays).
2 Try playing audio from various sources, including YouTube and
audio les stored locally on the Inspiron Chromebook.
3 Try rebooting the Inspiron Chromebook.
4 If audio still does not respond, try to Reset or Recover the
Chomebook.
Screen issues If the screen is not operating properly (images are too dark or no
image is appearing):
1 Try adjusting the brightness with the brightness keys at the
top of the keyboard.
2 In the status area in the bottom-right of the screen, check the
display and make sure there are no issues with a mirrored or
extended display.
3 Try rebooting the Inspiron Chromebook
4 If the screen issues persist, try to Reset or Recover the
Chomebook.
Camera issues If the camera is not operating properly (blurry images or poor
performance):
1 Check that the camera is not being blocked or covered by a
privacy screen or other obstruction.
Troubleshooting 67
Issue Possible solutions
2 Try using dierent apps that use the camera. Try a Google+
Hangout or the onboard camera app
3 Try rebooting the Inspiron Chromebook
4 If the camera issues persist, try to Reset or Recover the
Chomebook.
Bluetooth issue
Table 11. Bluetooth issue
Issue Possible solutions
Bluetooth issues If you run into issues while attempting to pair or use a Bluetooth
device with the Inspiron Chromebook, try the following steps to
resolve the issue:
1 First, make sure that the Bluetooth device you are trying to
pair is supported by the Inspiron Chromebook.
2 Try disabling and re-enabling Bluetooth connectivity from the
status area in the lower-right corner.
3 Try restarting the Inspiron Chromebook.
4 If you are still encountering issue with bluetooth, try to Reset
or Recover the Chomebook.
Touchpad and Hotkeys issues
Table 12. Touchpad and hotkeys issues
Issue Possible solutions
Touchpad not responding If the touch pad has stopped responding, try the following steps to
resolve the issue:
1 Try moving the cursor after each step.
2 Click the Esc key several times.
3 Drumroll the ngers across the touch pad for a few seconds.
4 Restart the Chrome OS by pressing the power button until
the device turns o, and then turn it on again.
5 If the cursor still does not move when using the touch pad, try
logging in from the Guest account using the tab key to
navigate.
6 If users experience touch pad issues with the account that is
not the owner (primary) account, delete the user account and
re-create it. Again, use the tab key to navigate.
7 If none of the above steps work, try to Reset or Recover the
Chromebook.
Top row of keys (Hotkeys) not responding If a hotkey (like the volume or brightness keys) are not responding,
try the following troubleshooting steps:
NOTE: Ensure to test the keys after each troubleshooting
step.
1 If the aected key is volume or brightness, check to make
sure you are not at the upper or lower limit for that setting.
68 Troubleshooting
Issue Possible solutions
2 If the backward or forward buttons do not work, check that
the same icons in a web browser are not grayed out. For
example, if the back button on a web page is grayed, this is
because the browser is not aware of a page to move
backward to.
3 Restart the Chrome OS by holding down the power button
until the device turns o, and then turn it back on again.
4 Try using the keys in the Guest account.
5 If users experience hotkey issues with the account that is not
the owner (primary) account, delete the user account and re-
create it.
6 If none of the above steps work, try to Reset or Recover the
Chomebook.
Chrome OS issue
Table 13. Chrome OS issue
Issue Possible solutions
He’s Dead, Jim! error message If the Inspiron Chromebook becomes slow or unresponsive, and the
He's Dead, Jim! error message appears, the system could be
running low on memory.
NOTE: If you terminated the process using Google
Chrome's Task Manager, the system's task manager, or
with a command line tool, this message will appear as well.
1 If the page was not ended intentionally, reload the page to
continue. If the message continues to appear, try closing
inactive tabs or other programs to free up more memory.
2 If issue persists, please see He's Dead, Jim! from Google
knowledge base.
Chrome OS is missing or damaged If the Inspiron Chromebook does not start and displays the
message, Chrome OS is missing or damaged. Please insert a
recovery USB stick into the USB ports on the device:
Perform a system recovery. See performing Recover Inspiron
Chromebook for more information.
Chrome OS stops responding and nothing moves on the computer
display
If the Chrome OS stops responding and nothing moves on the
computer display, try the following steps to resolve the issue:
1 Turn o the computer.
2 Disconnect all peripheral devices, and remove all USB devices
and media cards.
3 Disconnect the AC adapter.
4 Press and hold the power button for 10 seconds.
5 Reconnect the AC adapter, and turn on the system.
6 If issue persists, please perform a Reset or Recover the
Inspiron Chromebook.
Lost/Forget Sign-in password (Chrome OS) If you lost/forget the sign-in password to the Inspiron Chromebook,
try the following steps to resolve the issue:
1 Check if this is a managed device (Enterprise enrolled device).
a If this is a managed device, please contact the
administrator to have them reset the password via
Google Admin Console.
Troubleshooting 69
Issue Possible solutions
b If this is not a managed device, please proceed with the
following steps:
2 Sign in as guest or use a dierent PC.
3 Open an internet browser, and navigate to https://
www.google.com/accounts/recovery/.
4 Select I do not know my password, and then enter the email
address that you use to sign in to Google.
5 Click Continue and follow the on-screen instructions to reset
the password.
Other Inspiron Chromebook lock up or freeze symptoms that are
not listed here
If none of the above symptoms match the Inspiron Chromebook’s
issue, refer to Google Help Center for the online troubleshooter and
more help.
I am unable to recover my Inspiron Chromebook To help ensure that you are running the latest version of Chrome
operating system once you recover your Inspiron Chromebook, we
recommend creating the recovery media with the latest version of
Chrome operating system and avoid using recovery media that may
contain an older version of the operating system.
An error message An unexpected error has occurred. Try the following steps to resolve the issue:
1Conrm that you successfully completed all instructions as
specied in Step2: Create the recovery USB ash drive or SD
card.
2 Try using a dierent USB stick or SD card.
3 If the problem persists, contact Google Chrome support team.
An error message You are using an out-of-date Chrome OS
recovery image.
You should download an up-to date recovery image. Follow all the
instructions exactly as specied in Step2: Create the recovery USB
ash drive or SD card.
You successfully recovered your Inspiron Chromebook but now you
can not use your USB or SD card with Windows
After you have completed recovery, you need to format your USB
or SD card using the recovery tool.
You successfully recovered your Inspiron Chromebook but now
Windows does not recognize the size of the USB or SD card used
for recovery.
After you have completed recovery, you need to format your USB
or SD card using the recovery tool.
CROSH
This topic covers the information you need to know for the Chrome Shell (CROSH). CROSH and the Google Chrome URL commands
provide some troubleshooting tools, information, and advanced settings.
The Chrome OS does not support ePSA, Dell BIOS, the F12 boot menu, or DellConnect. There are no preboot diagnostics. All
troubleshooting must be done inside the OS. Chrome Shell (CROSH) and the Chrome URL commands provide some troubleshooting tools,
information, and advanced settings. CROSH is a command line interface similar to the Linux BASH or Windows command (cmd.exe)
terminals. Chrome OS is based on Linux, but CROSH does not recognize most Linux commands. The most useful commands for
troubleshooting are memory test, storage_test_1, storage_test_2, ping, and tracepath. Ping works dierently than it does in Windows. By
default, it repeats until you press <Ctrl> + <C>, and it does not show any statistics. The tracepath command is similar to the Windows
traceroute command. A detailed explanation of the commands can be viewed below, by typing help, or help_advanced in CROSH.
1 Open the Chrome browser.
70 Troubleshooting
2 Press <Clrl> + <Alt> + <T> The interface appears as shown in the screenshot below:
3 Type in the CROSH command for diagnostics. Type 'help' for a list of available commands. Type help_advanced to display a complete
list of commands for debugging purposes
Alternately, refer to CROSH Commands for the list of the CROSH commands available for diagnostics.
CROSH commands
The table below lists the available commands in Chrome Shell (CROSH).
Table 14. Help commands
Command Purpose
exit Exits the CROSH Shell.
help Displays this help.
help_advanced Displays the help for more advanced commands, used for
debugging.
ping [-c count] [-i interval] [-n] [-s packetsize] [-W waittime] — Sends
ICMP ECHO_REQUEST packets to a network host. If is "gw", then
the next hop gateway for the default route is used. It works just like
the ping command on other operating systems. Press <Clrt> + <C>
to stop the ping process or halt any other command in CROSH.
ssh [optional args...] — Starts the ssh subsystem if invoked without any
arguments. "ssh <user> <host>", "ssh <user> <host> <port>", "ssh<
user>@<host>". or "ssh <user>@<host> <port>" connect without
entering the subsystem
ssh_forget_host Removes a host from the list of known ssh hosts. This command
displays a menu of known hosts and prompts for the host to forget.
top Sets the chaps debug logging level. No arguments start verbose
logging
Troubleshooting 71
Table 15. Advanced help command
Command Purpose
battery_test[<test length>] Tests the battery discharge rate for a given number of seconds. No
argument defaults to a 300 s test.
bt_console [<agent capability>] Enters a Bluetooth debugging console. The Optional argument
species the capability of a pairing agent the console provides; see
the Bluetooth Core specication for valid options.
chaps_debug [start|stop|<log_level>] Sets the chaps debug logging level. No arguments will start verbose
logging.
connectivity Shows connectivity status.
experimental_storage<status|enable|disable> Enables or disables experimental storage features.
_debug [<tag_expr>] [--help] [--list_valid_tags] [--reset] Adds and removes imam debugging tags.
memory_test Performs extensive memory testing on the available free memory.
modem <command> [args...] Interacts with the 3G modem. Run modem help for detailed help.
modem_set_carrier carrier-name Congures the modem for the specied carrier.
network_diag[--date] [--link] [--show-macs] [--wi] [--help] [--wi-
mon] <host>
Performs a suite of network diagnostics and saves a copy of the
output to your download directory
network_logging <wi|cellular|ethernet> Enables a predened set of tags useful for debugging the specied
device.
p2p_update [enable | disable] Enables or disables the peer-to-peer (P2P) sharing of updates over
the local network. This will both attempt to get updates from other
peers in the network and shares the downloaded updates with
them. Run this command without arguments to see the current
state.
rlz < status | enable | disable> Enables or disables RLZ.
rollback Attempts to roll back to the previous update cached on your
system. Only available on non-stable channels and non-enterprise
enrolled devices. Please note that this will power wash your device.
route [-n] [-6] Displays the routing tables.
set_apn [-n <network-id>] [-u <username>] [-p <password>] <apn> Sets the APN to use when connecting to the network specied by
<network-id>. If <network-id> is not specied, use the network-id
of the currently registered network.
set_apn - c Clears the APN to be used, so that the default APN is used instead.
set_arpgw <true | false> Turns on the extra network state checking to make sure the default
gateway is reachable.
set_cellular_ppp [-u <username>] [-p <password>] Sets the PPP username and/or password for an existing cellular
connection. If neither -u nor -p is provided, this shows the existing
PPP username for the cellular connection.
set_cellular_ppp -c Clears any existing PPP username and PPP password for an
existing cellular connection.
sound <command> <argument> Low level sound conguration. Can be used to play/record audio
samples and enable beam forming on Pixel. sound beamforming
<on|o > will enable/disable the feature. sound record [duration]
will start recording. sound play <lename> plays the recorded audio
samples
storage_status Reads storage device SMART health status, vendor attributes, and
error logs.
storage_test_1 Performs a short oine SMART test.
72 Troubleshooting
Command Purpose
storage_test_2 Performs an extensive readability test.
syslog <message> Logs a message to system log.
tpcontrol{status | taptoclick [on|o] sensitivity [1-5] | set
<property>< value>} tpcontrol {syntp [on|o]}
Allows the user to manually adjust advanced touchpad settings.
tracepath [-n] <destination>[/port] Traces the path/route to a network host.
update_over_cellular [enable|disable] Enables or disables the auto updates over cellular networks. Run
without arguments to see the current state.
upload crashes Uploads available crash reports to the crash server.
wpa_debug [<debug_level>] [--help] [--list_valid_level] [--reset] Sets the wpa_supplicant debugging level.
xset m [acc_mult[/acc_div] [thr]] xset m default Tweaks the mouse acceleration rate.
xset r rate [delay [rate]] Tweaks the autorepeat rates. The delay is the number of
milliseconds before autorepeat starts. The rate is the number of
repeats per second.
xset r [keycode] < on|o > Turns autorepeat on/o. If a keycode is specied, it aects only
that key. If not specied, it aects global behavior.
Commonly used CROSH command
This page contains information about the most commonly used CROSH commands to diagnose the Dell Inspiron Chromebook.
Below are some of the most commonly used CROSH commands to troubleshoot a hardware issue.
NOTE: CROSH storage_test_1 and storage_test_2 are not supported on the eMMC storage device.
Check battery charging status
The Chrome Shell (CROSH) includes a simple battery health diagnostic test. This is to conrm that the battery is charging and to check on
the battery health and discharge rate. Follow the instruction provided to check on the battery charging status:
1 Connect the AC adapter to the Inspiron Chromebook and a power outlet.
2 Turn on, and sign in to the Inspiron Chromebook.
3 Open the Chrome browser.
4 Press CTRL + ALT + T to open CROSH.
Troubleshooting 73
5 Type battery_test 1 into CROSH, and then press Enter.
6 Check the result to conrm that the battery is charging.
Check battery health
Follow the steps to evaluate the health of the Inspiron Chromebook battery, and check the discharge rate:
1 Disconnect the AC adapter from the Inspiron Chromebook.
2 Turn on and sign in to Inspiron Chromebook.
3 Open the Chrome browser.
74 Troubleshooting
4 Press CTRL + ALT + T to open CROSH.
5 Type battery_test 1 into CROSH, and then press Enter.
6 A screen displays the current battery health and discharge rate.
• If the Battery health percentage is greater than 50%, the battery is within the expected wear limits.
• If the Battery health percentage is equal to or less than 50% and the battery is less than a year old, the battery is outside expected
wear limits and might need to be replaced.
Troubleshooting 75
• If the test results show that Battery is Unknown, the battery might need to be replaced.
Checking memory
Follow the steps below to perform a memory check for Inspiron Chromebook:
NOTE: This will approximately take 20 minutes, and it also depends on the capacity of the memory.
1 Turn on and sign in to Inspiron Chromebook.
2 Open the Chrome browser.
3 Press CTRL + ALT + T to open CROSH.
4 Type memory_test into CROSH, and then press Enter.
76 Troubleshooting
5 A diagnostic screen displays the result of the memory test passed without any errors.
Example of a memory test failure.
Troubleshooting 77
Checking network status
If you are having trouble connecting to the Internet, use the steps in one or more of the following sections to test the network adapter:
Follow the instruction to gather the information about the network and diagnose the network errors.
1 Turn on and sign in to Inspiron Chromebook.
2 Open the Chrome browser.
3 Press CTRL + ALT + T to open CROSH.
4 Type network_diag into CROSH, and then press Enter.
78 Troubleshooting
5 Wait while CROSH performs a set of network diagnostic tests. A diagnostic screen displays the results of the network adapter health
test.
6 The diagnostic test log is saved as a.txt (plain text) le in the Files app.
Troubleshooting 79
7 If the diagnostic test returns a failure message, make sure the Wi-Fi adapter is enabled and connect to a network.
Chrome commands
Chrome:// pages contain experimental features, diagnostic tools, and detailed statistics. They are hidden in Chrome's user interface.
Chrome://about page lists all Chrome's internal pages. To view all the commands, type chrome://about in the Chrome browser URL as
shown below:
Table 16. Chrome browser shortcuts
Purpose Browser Shortcut Explanation
System Information chrome://system/ "Who am I".. BIOS version, and so on
Basic Connectivity Diags chrome://diagnostics/ Test for NIC and Internet connection
Chrome Information chrome://version More "Who am I" type of stu
Create Recovery USB Stick chrome://imageburner/ Google's version of DBAR/DBRM
Chrome Flags chrome://ags Experimental features beyond the scope of
what Dell supports
Memory Troubleshooting chrome://memory View running processes and memory
utilization
Module Load chrome://conicts Shows conicts of all modules loaded by
Chrome
Chrome Sync Status chrome://syncchrome://sync-internals Allows troubleshooting of connected
accounts
Connectivity Troubleshooting chrome://net-internals Comprehensive network/connectivity
diagnostics, including DNS analysis, Waterfall
and Bandwidth diagnostics, and so on
Histogram chrome://histograms Actual work and I/O audit
80 Troubleshooting
Purpose Browser Shortcut Explanation
Credits chrome://credits References to all module/libs contributions
and their respective wiki/license URLs
Crash Reporting chrome://crashes Shows detailed crash report, if the feature
was enabled
Apps RAM Utilization chrome://appcache-internals Detailed memory usage for apps/extensions,
especially handy for 2 GB Chromebooks
Following are the 12 most helpful chrome:// commands that you should know:
Table 17. Helpful chrome commands
Chrome Commands Purpose Screenshot
chrome://ags From here you can enable some of the
experimental features that are hidden in the
Google Chrome browser. Please note that as
mentioned on this page, since these are
experimental, these might not work as
expected and might cause issues. Enable
these features, and use it at your own risk.
chrome://dns This displays the list of hostnames for which
the browser will prefetch the DNS records.
Troubleshooting 81
Chrome Commands Purpose Screenshot
chrome://downloads This is also available from the Menu >
Downloads. Shortcut key is Ctrl+J.
chrome://extensions This is also available from the Menu > Tools
> Extensions.
chrome://bookmarks This is also available from the Menu >
Bookmarks > Bookmark Manager. Short cut
key is Ctrl+Shift+O.
82 Troubleshooting
Chrome Commands Purpose Screenshot
chrome://history This is also available from the Menu >
History. Short cut key is Ctrl+H.
chrome://memory This will redirect to “chrome://memory-
redirect/”. This will display the memory used
by the Google Chrome browser. This also
displays all the process related to browser
with their PID, process name, and the
memory it takes.
chrome://net-internals This displays all networking related
information. Use this to capture network
events generated by the browser. You can
also export this data. You can view DNS
host resolver cache. One of the important
features in this feature is “Test”. If a URL
failed to load, you can go to “chrome://net-
internals” > click on “Tests” tab > type that
URL which failed, and click on “Start Test”,
which does some test and report you why
that URL failed. chrome://plugins/.
Troubleshooting 83
Chrome Commands Purpose Screenshot
chrome://quota-internals This gives information about the disk space
quote used by the browser, including the
breakdown of how much space the
individual websites took under temporary
les.
chrome://sessions This displays the number of sessions and
magic list that are currently running.
chrome://settings This is also available from the Menu >
Options (on Windows), and Menu >
Preferences (on Linux). From here you can
control various browser related settings.
84 Troubleshooting
Chrome Commands Purpose Screenshot
chrome://sync-internals This gives information about the Chrome
sync feature, including the Sync URL used
by Google, and sync statistics.
Reset Inspiron Chromebook
This page contains all information about resetting Dell Inspiron Chromebook.
All local user data stored on the Inspiron Chromebook can be cleared by resetting it to its original factory state (also known as Powerwash).
This step might be helpful if you want to reset owner permissions or if you are experiencing issues with your user prole.
NOTE: All data stored on your Inspiron Chromebook such as downloaded les, photos, owner permissions, and saved networks,
will be deleted for all accounts when performing a factory reset. After clearing this data, you will be guided through the initial
setup again. Resetting your device will not aect your accounts themselves, or any data synced to these accounts.
NOTE: Do not follow the instructions below if you're using a managed Chrome device, as you will not be able to re-enroll your
device after powerwashing it.
Follow these steps to reset your Inspiron Chromebook to its original factory state:
Troubleshooting 85
1 Click the status area in the lower-right corner, where your account picture appears.
86 Troubleshooting
2 Click Settings as highlighted from the screenshot below.
Troubleshooting 87
3 Click Show advanced settings to expand the menu.
88 Troubleshooting
4 Click the Powerwash button.
Troubleshooting 89
5 Click Restart when prompted.
You can also reset your Inspiron Chromebook from the sign-in screen by holding down the keys Ctrl+Alt+Shift+R and clicking
Restart. (If you are signed in to your Inspiron Chromebook, sign out rst before you press on Ctrl+Alt+Shift+R, then click Restart.
Once the Inspiron Chromebook is restarted, click Reset.)
After you restart the Inspiron Chromebook, you should now see the setup screen. Follow the instructions on the screen to set up your
Inspiron Chromebook again. Make sure you sign in with your primary Google Account, because this account is set as the owner account.
Recovering the Inspiron Chromebook
This page contains information about recovering Dell Inspiron Inspiron Chromebook.
Install a new version of the Chrome operating system on your Inspiron Chromebook by going through the recovery process. You may want
to go through this process if you are having problems updating your Inspiron Chromebook or if it stops working.
NOTE: All account information and data stored on your Inspiron Chromebook, such as photos, downloaded les, and saved
networks, will be deleted. Owner privileges for your primary account will also be reset. However, the actual Google Accounts and
any data synced to these accounts are not aected by the recovery process. After the recovery process is complete, you will be
guided through the initial setup again.
Prerequisites:
90 Troubleshooting
Before starting this process, you need the following:
• A Chrome device, Windows, Mac, or the Linux computer with administrative rights.
• A 4 GB or larger USB ash drive or SD card that you do not mind clearing.
Step 1-Check for the Chrome OS is missing or damaged
message
If you see this message, you can rst try to perform a hard reset on your Inspiron Chromebook by pressing Refresh + Power. If you still see
this message after performing a hard reset, please proceed to Step 2.
If you see the Chrome OS verication is turned o message, refer to Chrome OS verication is turned o section below.
Step 2-Create the recovery USB ash drive or SD card
Insert a USB ash drive or SD card into your computer and follow the instructions below
Table 18. USB ash drive or SD card
Operating System Instructions
Chrome Device Instructions
Create a recovery ash drive by using the Image Burner. The tool
may not be available in all languages.
1 Type chrome://imageburner into the omnibox (browser's
address bar) .
2 Run the tool and follow the instructions that appear on your
screen.
NOTE: When recovering your Inspiron Chromebook, make
sure to create the recovery ash drive on the same model.
Windows Instructions
1 Click this link to download the Recovery Tool. If you are a
network administrator for your school, business, or
organization, click this link to download the Recovery Tool: 2.
3.
2 Run the tool and follow the instructions that appear on your
screen.
3 After you recover your Inspiron Chromebook, you must format
your USB ash drive or SD card using the Recovery Tool. If
you do not format your USB ash drive or SD card, you will
not be able to use all the storage space on your external
device. Additionally, your USB ash drive or SD card may not
be recognizable by Windows.
Mac Instructions
Create a recovery ash drive by using the Recovery Tool. The tool
may not be available in all languages.
1 Click this link to download the Recovery Tool.
2 Run the tool and follow the instructions that appear on your
screen.
After the process is complete, you might see an alert saying your
USB drive or SD card is unreadable. If this fails, try removing and
reinserting your USB drive or SD card. Your USB drive or SD card
should now be ready to use for recovery.
Linux Instructions Create a recovery ash drive by using the Recovery Tool. The tool
may not be available in all languages.
Troubleshooting 91
Operating System Instructions
1 1.Click this link to download the Recovery Tool.
2 Modify the script permissions to allow execution with the
following command: $ & sudo chmod 755 linux_recovery.sh
3 Run the script with root privileges with the following
command:$ sudo bash linux_recovery.sh
4 Follow the prompts from the tool to complete building the
operating system image.
Reinstall the Chrome Operating System
1 Start your Inspiron Chromebook.
2 When the Chrome OS is missing or damaged screen appears, insert the USB ash drive or SD card you created into the USB port or
SD card slot on your Chrome device
3 Wait for the Inspiron Chromebook to boot up from the ash drive
4 Follow the instructions that appear on the screen.
5 On successful installation of the Chrome operating system, you will be prompted to remove the USB ash drive or SD card.
6 Remove the USB ash drive or SD card when prompted, and your Inspiron Chromebook will automatically restart.
You should now be able to start your Inspiron Chromebook as normal. Because the data stored on your Inspiron Chromebook has been
cleared, you will need to go through the initial setup again. Make sure you sign in with your primary Google Account, because this account
will be set as the owner account.
Chrome OS verication is turned o Message
By default, Inspiron Chromebooks are set to the normal user mode. If you've set the user mode to developer mode instead, you'll see a
screen with the message "Chrome OS verication is turned o" when you start up. Use the developer mode if you want to test your own
version of the Chrome operating system.
Press Ctrl+D to enter developer mode. If you press the space bar instead, you'll see a screen asking to recover your device.
Troubleshooting Tips
Table 19. Troubleshooting tips
Question Solution
I am unable to recover my Inspiron Chromebook To help ensure that you are running the latest version of Chrome
OS once you recover your Inspiron Chromebook, we recommend
creating the recovery media with the latest version of Chrome OS
and avoid using recovery media that may contain an older version of
the operating system.
An error message An unexpected error has occurred. Try the following steps:
1Conrm that you successfully completed all instructions
exactly as specied in Step 2: Create the recovery USB ash
drive or SD card above.
2 Try using a dierent USB stick or SD card.
3 If the problem persists, contact Google Chrome support team.
An error message You are using an out-of-date Chrome OS
recovery image.
You should download an up-to date recovery image. Simply follow all
the instructions exactly as specied in Step 2 above.
92 Troubleshooting
Question Solution
You successfully recovered your Inspiron Chromebook but now you
can not use your USB or SD card with Windows
After you have completed recovery, you need to format your USB
or SD card using the recovery tool.
You successfully recovered your Inspiron Chromebook but now
Windows does not recognize the whole size of the USB or SD card
used for recover.
After you have completed recovery, you need to format your USB
or SD card using the recovery tool.
Troubleshooting 93