How do I open the case to correct suspected grounded wire?

After a slight bump to the case (upper left corner nearext the lens), my Casio Exilim EX-S880 camera will not display pictures stored in memory with the "display" button, but displays photo before and briefly after taken, and displays photos when in the charging dock. I suspect a wire associated with the display button is pinched (grounded?) or loose.

Any help popping the case, front and or back side. It appears very similar to the EX-Z550 pictured in your devices.