Xperia Mini Pro Battery Problems

[oyhens]

Yesterday while I was charging my phone, I wanted to give my friend to play with it, so I unplug it and a few minutes later it suddenly off by itself and on back showing a full red battery sign on top which means low battery so i immediately charged it back and till now I can't use my phone even to unlock it It will instantly off and on by itself again and again ..

Can Somebody please help me?? :'(

[Jake-SonyXperia]

I would first suggest trying a software repair to the device using the Update Service.

Update Service:

http://www.sonymobile.com/global-en/tools/update-service/

Note, this does remove all data from the handsets memory but does not touch a SIM card or memory stick.

Let me know how you get on.

[oyhens]

I have tried the PC Companion Repair and now I can only use my phone when I charge it

Now currently in ICS ...

I have charged the phone to 100% and after that I remove the battery and reinsert it after 2 mins and It only on when I charge it and it shows the battery is 8% or even lower then that

[m4dj]

Seems that something could be wrong with the battery. I would try to solve it with service center.....