hi, i'm having problems with the same thing but every now and them my phone will restart and then turn back on when ever it wants too, i look on you tube how i can solve this, it says that where the battery sits in the phone is too big and the battery it self is to small so they told me to take a piece of a card cut it and fit it in between the battery holder and the battery its self. i tried this and for some reason it keeps turning off still and restarting. i hope some can tell me how i can fix this problem?