The camera failed problem remains even when I update to nougat. Installing a custom rom can fix it? I didn't mess up with the phone yet but... If this going to continue I will. And yes, I did all the fixes (hard reset, changing stock rom via Odin, clear cache) and I know it is not hardware because my camera worked just fine a week, until I put a SD card into it. And the problem is the front camera, the rear don't have any problem.