You can do it on any computer-Windows, Mac, Linux, or Chromebook-with the Chrome browser installed. Head to the Chrome Web Store and install the Chromebook Recovery Utility Chrome app to get started. You’ll now need to create the Chrome OS operating system using recovery media.
You’ll be told you need to restore Chrome OS using the Chrome OS recovery media, and then re-run this script to reset the firmware boot flags. The process should complete successfully. Downloading the original BIOS from the Internet only works for devices using the Haswell, Broadwell, or Baytrail architectures at the moment, according to the script’s documentation. Just tell the script you do not have a firmware backup file when it asks.
If you’ve lost your backup copy of the original BIOS firmware, the script can attempt to download and install copies from the Internet. The script will flash the backup BIOS back onto your Chromebook. Type “9” and press “Enter” to run it.Īnswer the script’s questions, connecting the USB drive containing your BIOS backup file and pointing the script at it. Use the “Restore Stock Firmware (full)” option. The script will download and run, presenting you with a helpful menu. Consult the developer’s website for more documentation about how the script works.
This command changes to your home directory, downloads the script file, and runs it with root privileges. cd ~ curl -L -O sudo bash firmware-util.sh Open a Terminal window in Ubuntu and paste the following command, pressing Enter afterwards. You now now run the same script you ran earlier. This will give the Linux system internet access, which it needs to download the script. Select “Try Ubuntu Without Installing” to get a live Ubuntu desktop.Ĭlick the Wi-Fi icon at the top right corner of your screen and connect to your Wi-Fi network when you reach the desktop. If it doesn’t, press any key at the start of the boot process, select “Boot Manager”, and select your USB drive. The BIOS should automatically boot from the USB drive. When you’re done, connect the USB drive to your Chromebook and reboot. If you left the write protect screw off, you can continue. NOTE: If you reinstalled your Chromebook’s BIOS write protect screw, you’ll need to remove it before flashing the original BIOS.