Can't log into apps with Google account

[yvmuell]

Ok no, thats not the way

You can use this

https://support.fairphone.com/hc/en-us/articles/4433978210833-Fairphone-4-OS-manual-installation-with-Windows
Or install Lineage plus Gapps

however please be super careful to not brick your phone!!!

Issues reverting to previous OS

The FP4 has a known bootloader bug and especiall when being not in the EU I would not risk to brick the phone in a way it can only be fixed by Fairphone repair service, so please be careful with recommendations to lock. LOS does not even support to relock the bootloader. And to add the most recent example

And be prepared its not working properly for calls etc, better have look here

Fairphone owners in the USA (FP2 FP3 FP4 FP5)

And those in north america are both in Canada so go for it