Zoom will not return in camra. indecation on screen . fault in lens .The battery is full.

I just worked on two of these Casio's, they have a lot of room for dirt and sand to get into the gears that operate the lens, eventually jamming the gears, I was able to clean out one so everything worked, the other would not zoom. I would not recommend taking them apart unless you really know what you are doing. This info is to tell you what happens to these cameras. They seem like you could just throw it in your pocket/purse, but you can't, They need to be in a bag that prevents dust and sand from entering, or they will not last long at all.

Could be that a gear in the lens is broken. Try PhotoTech repair in NYC. They are reputable and are authorized by the manufacturer to do repairs.
website:
www.phototech.com