Official LineageOS 17.1 for Fairphone 3/Fairphone 3+

[AnotherElk]

@HolosericaCaligo

I got that “your device is corrupt” warning.

How to root the Fairphone 3?

Do you mean this screen (sorry, low resolution image grabbed from the internet)? … [grafik] If it is this screen in your case … just press the power button to continue booting (before the phone gets rebooted automatically after 30 seconds). If you want to get rid of this screen, you can do it with ADB once Android or TWRP are booted …