Some times ago I saw a big bump on the back of my mobile and I thought the battery has swollen. So I shut it down and got the battery changed. After that when I turned on my mobile first it is constantly having problems with connecting to wifi. Second it shows "camera failed" message every time I try to turn it on. I did every tip and trick, even I have rebooted
, did factory setting. Still the problem persists. What should I do?
