Took the prompted Open OS update yesterday (Fairphone Open 21.10.0-rel.2) on my 2017 FP2.
On startup the phone asks for the PINs for both physical SIMs. But then only finds network for SIM2.
I’ve done the very obvious (deactivate/reactivate, remove SIM and restart etc). Will need to investigate properly later.
But fundamentally, I’ve lost half my phone for calls+SMS and all my access to 4G data.
Yes, I did make a selective backup before the update. Would like to avoid factory reset if at all possible though.