This guide will shop you how to open the logitech G700s, this is necessary for cleaning, replacing the scroll wheel and replacing the left and right click switches.
Remove the batteries from the mouse.
Use a plastic opening tool to peel up the four mouse feet.
Remove the five 5.5mm Phillips #00 screws found underneath the mouse feet.
Pull the top of the mouse off of the bottom half.
Unplug the programmable buttons from the motherboard.