android 9 upgrade : make it clearer that screen lock should be disabled on encrypted phones
Which version of the software are you running?
Updater tool could not install Android 9. I had my notification that system could be updated. I accepted. Updater downloaded the new OS Updated asked for reboot I agreed reboot Phone rebooted to android 7. No special notification about any error or issue. When reading manual procedure for updating to android 7, I found that "The Android 7 upgrade cannot be installed on encrypted devices with secure start-up enabled. Please disable secure start-up first: go to security settings and re-enter your current screen lock, but leave secure start-up disabled. You should undo this after installing the update." My phone is indeed encrypted. I disabled the screen lock, retried (updater downloaded the OS again) then the update happened seamlessly.
The updater should test encrypted+locked condition (or at least the encrypted condition) and issue a message that screen lock should be disabled.
Steps to reproduce
Merely try to upgrade from FairphoneOS 19(? android 7) to 21 on an encrypted+screen-locked FP2
Is there a workaround?
Disable screen lock
Describe the impact this has on your everyday experience
Low as long as I could find out the workaround somewhere... but not at the proper place