M2 Note battery issues

Hey,

I’ve been struggling with this battery issue for a long time now. So It started sometime after updating to Flyme 6 beta, battery used to discharge in a matter of seconds when reached 30% and now it will do about the same when its 80%. Last night I’ve downgraded to Flyme 5, did a full factory reset, discharged the phone fully and charged it overnight while it was off. Nothing changed.
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Is there any known cause and fix of this issue? As I’ve seen more people with similar issues, although the fixes mentioned didn’t work for me.

Cheers,

Domas

last edited by Domas Aleknavičius

Also, sometimes it turns off immediately at about 20% and shows an odd battery symbol with some chinese symbols underneath. What is that supposed to mean?

Thank you for your reply, will try it out today.

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