iPhone reboot when I lock screen
Hi, sorry for my english but i'm italian. I have a prolem with my iphone 6s plus i buyed it without the screen i buyed a new screen and it works but i have this problem that after 3 or 4 days it starts to reboot when i lock the screen and try to unlock and if i didn't lock it doesn't reboot and to fix this problem i must to reset the iphone but after a few days it starts to do the same thing. i have already change 2 battery but the prolem persist what can i do?
Is this a good question?