I’m using Nokia Lumia520. Last month, it slipped from my hand to floor. Then, i changed its touch screen. But, now a days, automatically, it has struck to work. If i continue a chats, playing a games or receive any calls means – at those time the touch will not worked. And also, some times it may went to restart. So, i get too much of irritates because of this problem. So, can u help me to solve this problem? please, tell me a solution to prevent this problem in future.

Regards
ahamed.yasmeen@gmail.