Samsung Galaxy S3 sudden discharge (No battery drain issue), how can I fix it?

A

AC Question

Samsung Galaxy S3 Sudden discharge (No battery drain issue)

Hi!
I'm having a problem whith a friend's S3 which I'm not being able to solve.

When the phone is not connected to the charger the battery lasts less than a few minutes being overly optimist.

He bought a new battery, and exactly the same happens.

If I try to charge it when it's turned off, the charging indicator flips between 100% and whatever number between 10 and 100%. So it goes like 100% - 30% - 100% - 31% - 100% - 32% . When it seems charged, I unplug it, turn it on, and almost instantly the message "Battery low, connect charger" appears.

I've tried rooting the phone, flashing an updated recovery which let me wipe the battery stats, but it didn't work.
Whith the phone rooted I tried whith some play store "Battery doctor apps", same results.

I can't seem to find the problem, any help would be really appreciated!
 

Members online

Forum statistics

Threads
943,170
Messages
6,917,627
Members
3,158,860
Latest member
smokedog87