I have a nice 5 month old Sony RX100M4 which I bought for having an "in-pocket" alternative to my Canon 70D. It takes amazing pictures but when I have it in my pocket it keeps turning on (extending the lens). As the viewfinder is popped up every time and I never use it, my guess is that the viewfinders physical lock for some reason is unlocked and pops up.
I would like to avoid this. Is this a well-known problem with a common easy solution (like a piece of tape over the viewfinder) or is it my camera and I should look into a warranty repair?