I purchased my T3i about a year ago. I haven't used it since October, and it was working fine. Yesterday, I tried to take a picture and it wouldn't work. I tried different memory cards, still nothing. Manual Focus, nope. When I turn it on itll take a picture and then the screen will be black. After i click buttons, the screen wakes up, and when i tried to press the button to take a picture, it doesnt take. Help.
If the camera has been sitting for a long time, the battery may be fully discharged and might need to be run through several discharge/charge cycles before it takes a full charge again. I've had that happen Camera wouldn't even take a shot at first... the battery was so quickly discharged. Then it would take a couple. Finally after a few charges it was fine again and would take lots of shots.