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ibc

I upgraded my Sony Xperia T to Android 4.3 some months ago but it is the last week when I'm suffering of this critical issue.

My phone turns itself off 10 or 20 or 30 times a day. It just happens when the charger is not connected. Said that, it constantly turns off even with the battery at 90% or 100%.

I've already reported it to Sony (via web ticket) and followed their steps (PC Companion and mobile reset, data lost and so on). PC Companion sets the latest firmware (this is, Android 4.3) not the old one coming with the mobile when I bought it two years ago.

PC Compannion procedure did not fix it at all. Even worse, just after the "repair" I switched on the mobile and it took 30 seconds to get turned off again! And then the very same: 10/20/30 shutdowns a day.

To make things clear: The shutdown problem ALSO occurs when I switch on the mobile *without* both the SIM and the SD card, so it is NOT a problem with the SIM or the SD card at all.

There are too many reports like this one in this forum and others. I don't fully understand why this problems happens now and not months ago when I upgraded to Android 4.3, but IMHO it is 100% clear that this is a firmware/software problem.

My mobile is 100% unusable right now. I hope Sony provides a solution ASAP.

aayonara

It's hardware problem. I think you must take it to service center.

ibc

Thanks but, may you please provide more information? why do you know it is a hardware problem? Given that there are so many bug reports like mine (all of them with Android 4.3), and given that no one of them have got a real solution/explanation, how can you be so sure?

Thanks again.

george_parv

I sent mine off for repair with same issue, came back fixed worked fine since battery issue according to what they repaired

ibc

Thanks. By the way: do you exactly know whether a battery replacement was enough to make it work? or was another component damaged or whatever?

I ask that because buying a battery my itself is 200 times cheaper than sending my phone to Sony (I have no guarranty).

ibc

I've been able to fix my Xperia T by buying a new battery.

faisal3dfx

I sent my phone to Sony and I got it yesterday. It's fine now working good. They told me that they replaced my battery with a new one and that's it. Well I don't know if they done any hardware replacement or not coz they didn't told me but I found trace of opening my mobile. So they opened it but they didn't told Me anything about hardware.

Damqn

Hello,

I have the same problem. My phone turns itself off. But i have also problem with the service. My phone is in warranty and when i send it the service says "the phone have no problem".

ibc

What do you expect me to say? I fixed my mobile by myself as explained above. I had no warranty.

George191

That's not much use if you rely on the mobile to keep in touch with very elderly relatives and their carers who need to be able to contact in emergencies. If Sony can't produce a reliable mobile, then they should refund the money paid out, so that we can try for a more reliable provider.