Warning: Camera Failed I have a vanilla Samsung Galaxy S3, and just a month or two ago the back camera won't work. Whenever I use the default Jelly Bean camera app, it just pops up a message saying: "Camera Failed." then closes the app.

I downloaded a third party camera app to use the forward-facing camera, which works fine. This happened very recently after I got the phone (it was a replacement) and has been in a rugged case the entire time. I don't recall any trauma to the camera itself, either.

Any fixes or what I might be doing wrong?
I have had my gs3 with T-mobile for about 11 months. Two days ago I began receiving "camera failed" warning. I was beginning to think, after researching this issue, that my phone would need to be replaced if I wanted a functioning camera again. But moments ago, with the "camera failed" warning showing on my screen, I started squeezing the top of my phone between my fingers in different places, and suddenly my camera started working again. I'm a bit afraid that it is going to stop working again, but at least I know this is a mechanical error. I'm thankful I didn't reset my phone for no reason. I have never posted to any site before this, but if this can help anyone else having this problem, I thought I should mention it. I do hope it helps.