xperia ZL 6503 drained battery problem

[skyline1]

hi

what could be the problem, if everytime I switch off the phone, the battery gets totally drained and I cant switch it on again (it doesnt matter how much is it charged before, it just vibrates like its going to turn on, but there is only black screen) then I have to wait few hours before the unit can be charged again and the battery is at 1%?

the problem occured, when I updated it to the latest sony update, prior the update, everything worked perfect..

I tried a few different (older) official roms, but now it's the same..

is it a battery problem or something else?

tnx

[Uliwooly]

Reinstall the latest update with SUS or PCC and check again 

Update Service (SUS)

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

[skyline1]

I've already tried both about 2 weeks ago and it is still the same..

any other ideas what could it be?

to me, it's very strange situation how battery goes from 100% full to 0% only with turning the device off

[Uliwooly]

You should take it to a Sony repair center.