Encrypt phone with FairPhone Open OS

Help Fairphone 2
,
52

Some findings about android device encryption:

  • A Factory data reset (via Settings --> Backup & reset) does not remove device encryption.
  • A clean way to remove device encryption: TWRP -> Wipe -> Format Data
  • When you have a TWRP-backup of an encrypted userdata partition, it is not possible to restore to an unencrypted userdata partition (boot loop). Workaround: 1. Factory data reset 2. Encrypt phone via (Settings -> Security) 3. Restore your TWRP-backup of userdata via TWRP.

Tested with twrp-3.1.1-1-fp2.img and LineageOS.

5 Likes