I have a Canon SX1 IS SLR approximately 10 to 11 years old. Yesterday I used it in heavy rain and got the restart message and jammed lens zoom. Dried it completely with a soft cloth. Looked up various solutions that didn't work. Old camera too bad ?? Eventually tried this. Hairdryer all over camera not too hot and not too much power. Next magazine paper between lens and camera body all around. Leave camera upside down lens facing down on flat surface overnight with all batteries and memory out. Also tapped the lens carefully a few times. In the morning surprise surprise bingo the camera works again.