I just bought this camera off of ebay. I have taken a couple of pictures, but now I can't get the camera to turn on. On the back of the camera in the box it says EOS. Is there an internal battery I can change (in addition to the battery pack)
If you are able reset the camera, format it so you can use the device from default. Just like BryanKo02 said re-insert the memory card properly to make sure the camera is reading the card right. You should also find any Driver support with your device to make sure the camera is up to par. But in all i feel that it may be another issue internal you may want to take the camera to a local technician to fully diagnose the problem.