Hi everyone, I’d like to ask for some help. I bought a second-hand FP3 phone, which, when switched on, indicated that the bootloader was unlocked, but after a short while the Google Android system booted up on the phone. I switched to developer mode and locked it using the ‘fastboot oem lock’ comm…

[image] DrG0nz0: but I’ll need official assistance to do so. No not with a FP3 So did you already try to unlock the bootloader? If this doesnt work see here [image] Fairphone 3 unlocking without oem unlocking Development I possibly have an easy way to …

Hi everyone! Thanks for your reply – I’ve had a look. In the meantime, I’ve installed a stock Google Android system on another FP3 phone instead of Ubuntu Touch. I’ll get round to this phone in due course, and I’ll read through it in detail then. Thanks for your time.

[image] DrG0nz0: get_unlock_ability: 0 Mostly depend on the “allow OEM unlock” in the “developer options” [image] DrG0nz0: Device critical unlocked: true In the relocking sequence, you must start by relocking critical before relocking bootloader. Here i advise to unlock if possible, …

[image] piero-e: you must start by relocking critical before main relocking. to be able to lock it, while there is no real advantage to lock critical when the bootloader is locked as far as I know.

You can force an unlock of the device using fastboot: [image] Fairphone 3 unlocking without oem unlocking Development I possibly have an easy way to unlock without factory resetting. play_button Thanks to @Ingo for checking that The following will unlock your…

FP3+ - bad boot

Help Fairphone 3

FPbonn August 8, 2026, 6:14pm 6

You can force an unlock of the device using fastboot: