I've had my s5 for about two months now. I just had to get it swapped out for a new one because I had bright blue spots showing up on my camera. When I Googled it, I saw a few others with different phones have had the issue and said it was camera sensor damage. Most of them had got it from taking pictures of the sun (lol). I had never done anything close to that but I did have my phone out in the sun for about an hour while I was tanning. Which is weird cause I've done that many times with s3 and other phones. So maybe mine was just defective but I'm going to be more careful with my new one!