Update Fairphone Open OS with TWRP?

[Lidwien]

@Max_S

Update Procedure when FPOS OTA-Update is available

If the FP updater informs you via WLAN about an FPOS update, you have to do it MANUALLY with TWRP, if you flashed TWRP before!

Here are the procedure (including re-establish root acces, link for root infos):

1 Download the FP2 ZIP as the “update” version (current v 1.3.6), 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 (details)

Perhaps this method will help you.