Okay, so I replaced the screen of my 4th gen 64gb iPod touch a few weeks ago and the camera didn't work. However when pulling up the metal plate that sits behind the screen, there is a piece of copper tape that connect the metal plate to the camera(don't know why) and it tore. So when I put it all back together, I made sure the pieces of copper were touching and the camera still don't work. I get the glitch in the bottom right of the screen when I have the camera app open.

I ordered a new rear camera but I was sure if anyone had any ideas as to easier way of fixing it without having to take it apart.