Hi there, After the CalyxOS announcement , I want to go back to stock ROM. My issue is the following: after rebooting in fastboot, fastboot flashing unlock work well, but when I try fastboot flashing unlock_critical, I have: > fastboot flashing unlock_critical FAILED (remote: ' Device already : unl…

Yes, I had the same symptoms (that it hung on the first content to send or failed on the unlock check although everything was also unlocked) on Linux Mint (everything up to date). So I hope you’ll also succeed using Suse Live. At least in my case there the problem did never happen.

Issue reverting to stock ROM

Help Fairphone 4

Smojo September 8, 2025, 2:31pm 13

Is this step needed?

I would directly move to the new target ROM.

Do you plan to close the bootloader?

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Guide to bootloader and bricking [2025] -- Discussion