Xperia T keeps turning his self off

[Hendrik7]

Dear guest,

I have a xperia T that still turning his self off. When he's on the charger there is no problem.

I had a 4.1.2 jelly bean rom on the moment this was started.

Now i have downgrade it to 4.0.4 using emma.

The problem is still te same. So it looks like the battery is broken!?

Has someone any idea?

Is sony giving warranty problems when it's running on a custom rom?

kind regards,

Hendrik Trienekens

[#2]

Where did you buy your phone?

[Hendrik7 · Accepted solution]

I buy it by vodafone nl online.

[#4]

Reboot to safe mode and check if the problem persists..

[Uliwooly]

most likely the issue is a faulty SIM card, you didn't had to unlocked your bootloader to downgrade your phone