Tried to update using the Fairphone Updater app, failed again same as for updates to 17.05, 17.06.4 and 17.07.6, even though the last update was a (full) manual installation.
Here’s how I tried to update:
- Load battery completely.
- Backup using TWRP w/o installation.
- Reboot phone.
- Delete data of Fairphone Updater app.
- Reboot to recovery and wipe cache partition.
- Reboot phone.
- Start Fairphone Updater app and check for update.
- Start update and reboot.
- After reboot, update runs for some time, then screen turns to dead android & „Error“.
- Go to recovery (
Power&Vol+) and check error details / log.
Here’s the log:
Supported API: 3
Finding update package…
Opening update package…
Verifying update package…
Installing update…
Source: Fairphone/FP2/FP2:6.0.1/FP2-gms-17.07.6/FP2-gms-17.07.6:user/release-keys
Target: Fairphone/FP2/FP2:6.0.1/FP2-gms-17.08.1/FP2-gms-17.08.1:user/release-keys
Verifying current system…
system partition has unexpected contents
E:Error in /cache/fp_update_FP2-gms-17.08.1.zip
(Status 7)
``
Installation aborted.
Last update was done as (full) manual installation (as mentioned above), phone is not rooted (and was never), recovery was not replaced, no pre-installed apps are deactivated (neither Google nor other ones).
So the same questions arise again: what exactly are the unexpected system partition contents and is there a way (besides probably doing a factory reset) to get the system partition fixed again?