Dell Chromebook 13 3380 Chromebook 11 3380 Disassembly and Reassembly Guide - - Page 74

Reinstall the Chrome Operating System, Chrome OS, is turned, Message, Troubleshooting Tips

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Operating System Instructions 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 Chromebook. 2 When the Chrome OS is missing or damaged screen appears, insert the USB flash drive or SD card you created into the USB port or SD card slot on your Chrome device 3 Wait for the Chromebook to boot up from the flash 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 flash drive or SD card. 6 Remove the USB flash drive or SD card when prompted, and your Chromebook will automatically restart. You should now be able to start your Chromebook as normal. Because the data stored on your 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 verification is turned off" Message By default, 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 verification is turned off" 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. NOTE: Dell does not support the use of the Developer Mode or non-standard OS versions. Troubleshooting Tips Table 19. Troubleshooting tips Question I am unable to recover my Chromebook An error message An unexpected error has occurred. Solution To help ensure that you are running the latest version of Chrome OS once you recover your 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. Try the following steps: 1 Confirm that you successfully completed all instructions exactly as specified in Step 2: Create the recovery USB flash drive or SD card above. 2 Try using a different 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 successfully recovered your Chromebook but now you can not use your USB or SD card with Windows You should download an up-to date recovery image. Simply follow all the instructions exactly as specified in Step 2 above. After you have completed recovery, you need to format your USB or SD card using the recovery tool. 74 Diagnostics and Troubleshooting

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Operating System
Instructions
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 Chromebook.
2
When the
Chrome OS is missing or damaged
screen appears, insert the USB
flash
drive or SD card you created into the USB port or
SD card slot on your Chrome device
3
Wait for the Chromebook to boot up from the
flash
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
flash
drive or SD card.
6
Remove the USB
flash
drive or SD card when prompted, and your Chromebook will automatically restart.
You should now be able to start your Chromebook as normal. Because the data stored on your 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
verification
is turned
off"
Message
By default, 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
verification
is turned
off"
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.
NOTE:
Dell does not support the use of the Developer Mode or non-standard OS versions.
Troubleshooting Tips
Table 19. Troubleshooting tips
Question
Solution
I am unable to recover my Chromebook
To help ensure that you are running the latest version of Chrome
OS once you recover your 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:
1
Confirm
that you successfully completed all instructions
exactly as
specified
in
Step 2: Create the recovery USB
flash
drive or SD card
above.
2
Try using a
different
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
specified
in Step 2 above.
You successfully recovered your 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.
74
Diagnostics and Troubleshooting