My iphone 5 sometime will auto turn off and restart by itself.. sometime very frequent such as keep restart 5 to 6 times continuously but sometime it will restart once a week only.. I already used the phone for 21 months and this problem start happened since the second month..
I didnt send back for warranty is because i bought it from singapore..
As what i suspect, it should be either motherboard or battery issues.. May i know, is there any shop that can help me diagnose? how long it normally took and how much is the cost to diagnose?

This post has been edited by zer016: Sep 18 2014, 12:14 PM