Troubleshooting Tips - Dell Chromebook 11 3380 Owner's Manual

Operating System
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.
An error message You are using an out-of-date Chrome OS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
74 Diagnostics and Troubleshooting
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.
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.
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.