Buddy, I feel vey proud to reply your question. if you are having problem with camera as you mention it as ’cam’. Don’t Worry, Do one thing my friend. Go to your washroom and take your phone in one hand and slap yourself with the other hand. Then, take your phone in other hand and again slap yourself with the first hand. Then, click a selfie. If your selfie shows the mark of the slap, then it’s working fine. If not, do this activity again and again. I am very hopeful that it will definitely work one day. God bless you and Don’t say Thank you to me for this ultimate suggestion. Because I know that I am good.