After sucessfully installing e/OS 3.2 on my Fairphone 6 following the official instructions (Install /e/OS on a Fairphone The Fairphone (Gen. 6) - “FP6”), I’m able to lock the critical partition with fastboot flashing lock_critical, but get a corrupted device after the last fastboot flashing lock step.
I’ve been able to flash a new version, but any help to fully lock it would be much appreciated!
I think you didn’t pay attention to the previous security patch date, when locking you should be in a bootloop. Unlocking it again should make it boot into /e/OS again, right?
If so, you need to wait until the next release with newer security patch. Be aware if not known, locking the bootloader will earse personal data on it
How can I double check that the security patch is correct before attempting to lock it again? I used the latest e/os release so I assumed it was up-to-date (Oct 2025).
The question is, what did the Fairphone have before you installed /e/OS. You need to check that before installation of /e/OS. It is the red part in the installation instruction about the rollback.
And if it boots into /e/OS and it doesn’t after locking then I am pretty sure that is the issue. That is why you have to wait until a newer security patch with /e/OS comes.
I had checked the Security Patch level of the Sock OS and the e/OS version, both were dated October 2025 so I assumed it was fine. Upon closer inspection, however, the sock OS SPL was dated Oct 5 whereas e/OS SPL was dated Oct 1, which I guess explains the issue.
I’ll wait for the next release with a newer security patch and hopefully this will solve the issue.