iPhone 5 camera doesn't work

Hello All,

I own an Apple iPhone 5 64GB which I think is truly amazing. But unfortunately the camera doesn't seem to work and I definitely think it is a hardware related issue.

I have replaced the camera twice now with ones I have bought from eBay and none of them have worked, but they were both from the same seller. I am not sure what the issue is here but It sure does need to be fixed. I'm not sure the history of the phone as I bought It second hand! Please help me someone. ( Not sure if it could be water damaged?)

Thank you,

Bradley Moon