I have a Galaxy S6 G920F phone. I've replaced the stock firmware with a custom ROM - XtreStoLite. Attempts to encrypt the phone using Android's built-in FDE fail with symptoms similar to the ones described in this other question, but none of the solutions suggested there help in my case.
What I've tried:
- disable Wi-Fi
- remove the SIM card
- hold the phone so that the screen switches to landscape mode
- factory reset, also tried to encrypt right after the first boot after installing the ROM
- plugged in to both a PC USB port and a wall charger
- instal every single additional package supplied by the author in the Aroma Addons Package
None of this helped; the phone simply displays a padlock icon on black background for around 3-4 seconds, shuts down, and after 15 seconds boots normally without reporting any errors. The storage is obviously not encrypted.
What is the reason for this behavior? How can I encrypt my phone?