Problem with this phone the new update xiaomi original rom / kernel discharge battery to 0.00 V ( i measured it with multimeter ) and you cant charge phone and thats why you cant turn on this phone anymore .
But i found the fix
Steps :
1 . Just dissasembly the phone
2 . Remove the battery from motherboard
3 . From backside of motherboard remove metal plates from the chips the CPU heat that side for 2-3 minutes with hair dryer when you dont have heating gun ( I was inspired using hair dryer in times of iPhone 4S wifi / signal problem )
4 . Put every parts back with battery plugged on motherboard
5 . Put the charger to your Poco M3 and turn it on
6 . You are done let phone charge to 100 % and remove that crappy Xiaomi ROM named MIUI and install any rom what you like .
I know its stupid fix but its working . I dont know its permamently damaged IC charge chip / CPU chip because of kernel / rom new update but its works for me fine for now .
Update : you need change PMI632 902-00 chip and it will fix you this problem
But i found the fix
Steps :
1 . Just dissasembly the phone
2 . Remove the battery from motherboard
3 . From backside of motherboard remove metal plates from the chips the CPU heat that side for 2-3 minutes with hair dryer when you dont have heating gun ( I was inspired using hair dryer in times of iPhone 4S wifi / signal problem )
4 . Put every parts back with battery plugged on motherboard
5 . Put the charger to your Poco M3 and turn it on
6 . You are done let phone charge to 100 % and remove that crappy Xiaomi ROM named MIUI and install any rom what you like .
I know its stupid fix but its working . I dont know its permamently damaged IC charge chip / CPU chip because of kernel / rom new update but its works for me fine for now .
Update : you need change PMI632 902-00 chip and it will fix you this problem
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