How to restore my FP2 Open OS?

An alternative is to apply the December update.
Of course first make a backup.
1 Download the FP2 ZIP fp2-sibon-17.12.1-ota-userdebug.zip pack it on SD card or internal storage
2 Start phone in TWRP (Power+VolUp > 10s) and install it via ZIP
3 If desired, without reboot also (re-)flash XPosed ZIP with TWRP.

1 Like