Share your experience!
Hi,
Recently, I've encountered a problem with my nearly 2 year old Xperia T in which the phone just turned off and wouldn't turn on. The last time I checked my phone, it was 25%, and then 5 minutes later, I checked it and it switched off and wouldn't turn on. At first, I thought it was a flat battery so I went to charge it but all I find was the red led light turning on and off every 5 seconds. At first, I thought this was a charging error so I connected it to my laptop and it connects for a second then disconnects and keeps disconnecting after that. So, then I thought it was my charger or cable, so I tried a different charger (different original Xperia T charger) but the problem persists. So, I went online and people said put a rubber band on the power button and charge it for 2 hours. Did that but the red led light does the same routine - turns on and off every 5 seconds - but then after 5-15 minutes in the red light disappears. I left it and thought that it was still charging but at the end it wouldn't turn on. I even tried the classic Up button and Power button trick and still no clue. My phone doesn't have modifications or any ROM stuff.
I hope I've given you sufficient Information and hopefully a solution will turn up. 
Please Help!
I'm sorry to hear that, contact your local Xperia Care
You could try this, but I doubt it'll work
remove both SIM and SD cards > connect your phone to a wall charger > press and hold power & volume up for 10 seconds > let it charge for 3 hours > repair the phone with PCC
Bridge (for Mac)
Alternatives on How to backup Xperias
http://talk.sonymobile.com/thread/36355
Thanks for the reply!
I tried this and even though I removed SIM, connected it to wall charger and done the power and up volume button thing, the phone still kept showing a red LED light for 5 seconds then the red LED light disappears, then it the red LED light turns back on and the cycle continues. The phone doesn't turn on - no sony Logo or anything, just a black screen, but the red LED does some turning on loop.
In my opinion, I think the phone is trying to charge but then it can't so it turns off, the it tries again to charge (Hence why the red LED keeps turning on and off).
However, I've noticed after keeping my phone on charge for a few hours that the red LED completely turns off and doesn't turn on again after about 15 minutes into the charging. It's as if it's given up charging or something. But then, when I reconnect it, the same red LED light loop occurs.
Please help me fix this soon as I need it for my new workplace. Also, this phone has been used for nearly 2 years and is on contract (2 year contract in UK), so can I get it fixed for free since it wasn't me who broke it? Like it just turned off as if it was a hardware or software problem.
Thanks!
UPDATE: Sending my phone in for repairs as I'm still under warranty 
UPDATE: Device receieved at repair station! :smileysmileythumbsup: Now just waiting for it to get fixed and sent back.
UPDATE 2: I recieved an email saying I have to pay for repairs. Phoned them up and they said they didn't recieve Proof of Purchase and I clearly sent it. Emailed them Proof of Purchase and now awaiting... More to come.
UPDATE 3:
So now, 2 weeks after they recieved the phone, the told me that the phone is in warranty and it's going to get fixed like last week and still hasn't got fixed. I need my phone asap as Im going on holiday in the next two weeks. It'll be great if they can get it fixed and shipped off this week since they have already passed their fixing deadline.