For those with fingerprint and battery issues on custom roms.

So some newer devices have been shipped with different components from the older ones and while everything works fine on recent miui versions, most custom roms have issues. So I'm creating this thread to document all the issues caused by these new components and any solutions to them in one thread. Please reply if you have any other issues caused by the new hardware or any solutions to them.

Fingerprint

Description:

• Option to add fingerprints doesn't appear even after setting pin, pattern or password on non miui based roms.

Cause:
Some devices have a new fingerprint sensor manufactured by Goodix which is not yet supported by non miui based roms.

Solutions:

• miui and any miui based roms such as xiaomi.eu should still work fine.


• Wait for CM to add support for the new hardware to its source code.

Battery

Description:

• Battery is stuck at either -2% or 50%.


• TWRP does not show battery percentage at all or constantly shows 50%.

Cause:
Possibly new battery controller hardware or an issue in the CM code which causes this issue on most newer roms.

Solutions:

• miui and other miui based roms such as xiaomi.eu should be fine.


• Mokee works fine.


• Unofficial Ressurrection Remix works fine up until the 06/08 build.

If you know of any other issues caused by newer hardware or solutions please tell me so that I can add it to this thread.