Remove all of the stickers on the back of the mouse. After doing so, you should see six screws on the back of the mouse.

Use the Phillips #0 Screwdriver to remove all six of these 4mm screws.

Use the Phillips #00 Screwdriver to remove these two, 3mm screws.

Slide the side panels off of the mouse.

Use your tweezers to take the lock switches off of the mouse.

Using the T6 Torx screwdriver, remove the two bottom 4mm screws as indicated in the second picture.