So I've had my A7s since October of 2015. I was shooting in an extremely humid climate about a month ago (June 2016) and the camera's off/on switch quit working. Now, no matter what position it is in, the camera will remain on. As you all know, battery life isn't great with these cameras so this is kind of a problem. I've tried getting around it by setting the auto off/power saving settings to turn the camera off after 10 seconds, but this has just become an inconvenience, seeing as how now a slight bump of my camera bag could turn on my camera.
I also own an A7ii and I've had that for close to 2 years now without any variation of this issue.
Any help/advice would be greatly appreciated!