xperia mini pro restart

[retakson]

hi, last night my phone was restarting after 10 minutes on wifi teathering. after that my phone rastart automatically few seconds after on. i tried remove micro sd and sim card but it doesn't work. now i can make it work on power charger plugged in. i read on some forum that this is not software problem. some people facing the same problem and reflashing didn't help. is it battery's problem? i bought this battery 3 months ago.

anyone can help? i don't wanna plugged in charger along day.

thanks before.

[Alexander1]

Did you try to reinstall/repair the phone software using PCC or SUS? 

http://www.sonymobile.com/update

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

You can try to start your phone in safe mode to see if the problem may be related to any 3rd party application installed in your phone: 

http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008

[retakson]

hi Alexander,

thanks for your answer.

i've reinstall phone software. it works, but the problem occured an hour later.

i can't enter safe mode. 1 sec after log in to safe mode it's restart again.

[Alexander1]

In that case I suggest that you have your phone examined by a service center. Please contact your local Xperia support team for more information: 

http://www.sonymobile.com/global-en/support/contact-us/