05-01-2016 12:28 PM
05-01-2016 01:09 PM
It is always possible that you have a battery issue: not holding a charge; not making good electical contact because of bent pins on the battery,or in the camera; obstruction in the battery compartment, etc. Your power switch could be faulty. There could be some issue with your memory card, too.
You should get it checked by a professional, as soon as possible, if the problem continues. Meanwhile, I would recommend that you remove your memory card, and try to recover pictures by reading the card with a computer. Do not re-insert it into the camera. If you have a spare card, try that in the camera.
Still, get your camera checked by a professional. Call 1-800-OK-CANON.