Chosen Solution

I have Sony Xperia T over 2 years everything works just fine but since last week i can not charge it… when i plug in cable there should be red light that it is charging,but there is no light… when i plug in cable it shows 64% battery..when i unplug it is 54%…but it wont go higher… last week when it hit like 14% phone start to reseting itself and than i couldnt even start it,so i change for my old battery…same story…i thought maybe there is problem with battery so i bought new one… but still same…with new battery phone works just fine because it is charged..but it wont charge anymore…. when i coonect phone to PC it communicate like there is no problem….also when i turn phone of and plug it to charger it start… i tried factory reset, doesnt help… can there be problem with usb port? or it is motherboard problem?

matuskorenciak, try a new cable first. If that should not work, check the USB charging port. If that is okay as well, then you have to consider working on the logic board. Possibly a PMIC issue.

it seems to be fault coming from your power ic, power ic (PM) do the charging and discharging functioning in the logic board. it use few methods for charging the battery, 1)USB mode charging 2)AC mode charging *)Normal charging (400-500 mA) *)Rapid/fast charging(600<800 mA) also it change the charging profile according to charged percentage % 0%-15% : Fast charging 15%-80% : Normal charging 80%-100% : cutoff charging accounting to your sounds your PM still working for fast charging but it not fully functional. i would like to offer two solution

  1. analyze the battery if it is OK
  2. check and change the PM IC : your PM ic should be PM8018

Same problem here. My Z3 battery currently at 46% and wont charge.

My Sony continue to cut off and go dead when it have a charge on the phone Update (09/14/2017) My Sony continue to cut off even wheni have half a charge