Yesterday evening I wanted to try to upgrade my FP2 to Android 6 (17.09.3).
(encrypted, FP Open 17.03.0, xposed+xprivacy, no GApps)
Of course I made a lot backups in advance (TWRP and Backups off all Apps+Data using oandbackup)
Unfortunately several things went wrong:
At first I ran into the same issues as everyone who tried this. I disabled xposed framework in advance but my phone freezed after the upgrade as well. Same problems most people had --> [Bug] ✏ Upgrade to FP Open 17.06.4 renders phone useless (freezes once booted and reboots itself)
Wipe data helped me to be able to start Android 6 (without freezes or reboots), but WLAN was not working (it somehow did not really turn on so it did not discover any available WLAN :-/)
An additional problem I have is that I cannot boot into fastboot mode (phone is hanging and shows a Fairphone Start Logo/screen). Fastboot (one my laptop) is not discovering it (-> shows
< waiting for any device > infinite). So I was also not able to perform the downgrade as workaround in between.
After the WLAN issue under Android 6, I decided to go back as I need at least a somehow working phone. It worked fine using my TRWP (v.126.96.36.199 -> works with encryption) Backup.
So here I’m back at Android 17.03.0. :-/
Personally I would go on like this:
- try to fix the fastboot problem --> what can I do to be able to boot normal into fastboot mode? (normal boot works as well as a boot into TWRP recovery)
- Another attempt to upgrade to Android 6.
I would like to go this step (Step 2) as staying at 17.03 for a longer time is not good as well. I would also be ok with a clean 17.09.3 which I can setup on my own step by step (restore all apps one by one). I hope I will not get this WLAN problem after my next attempt again.
But one step after the other. At first I don’t know how to fix 1. and after that I can think about what is the best way to upgrade for me.