My younger sister has a Nikon d3100. Now she asks me if I can help her fix it. She uses the lens that came with the d3100 kit, and for some reason it's completely stuck. She claims that it's been that way "forever".
The camera takes pictures fine, autofocus works and there are no apparent problems with the camera or lens. However, when I push the button to remove the lens, it goes halfway (out of the "click" that you can hear) but it will not come off. It doesn't go all the way around.
Any advice on how to fix this? I don't want to use force to try make it come off.. I suppose I could send it in to be fixed.. but would it be covered by warranty?