You may have gotten a “Bootloader lock warning” message during the Setup Wizard that brings you to this page (calyxos.org/lock)

Relocking, just like unlocking, wipes your device. Make sure you have everything you need before continuing; we suggest taking a look at our built-in backup solution, Seedvault, which may help you.

Our device-flasher and Web Installer check your device properities and setup to try and ensure that relocking is safe, and as such, following alongside their steps is best. When you install CalyxOS, please follow the instructions as they appear in the device-flasher or Web Installer instead of relocking the bootloader manually yourself.

Feel free to contact us at Community for any questions or concerns.

Pixel

It should be safe to relock the bootloader anytime.

SHIFTphone

DO NOT relock the bootloader without additional checks!

Fairphone

DO NOT relock the bootloader without additional checks!

Find more details on the Fairphone relock page.

Motorola

DO NOT relock the bootloader without additional checks!

Find more details on the Motorola relock page.