My camera has a problem

@majidusali since iFixit does not yet have a guide for that, use something like this video or even this one to replace the camera. As or the cost, that will depend on which camera you need. In general it should not be more than around USD$20 per camera. That will of course depend on where you are and what camera you need.

While you work on your phone, take lots of pictures. Once you are done with it, take those pictures and create a guide for iFixit. That will help the next person that has the same problem as you do. It's easy and fun to create these guides. https://ifixit.com/Guide/new The iFixit community will appreciate this.

Repair is War on Entropy!