Question: what screwdriver do i need to open an xbox one controller?
Answer: You'll need a Saftey Torx Screwdriver (different than the T6 Torx Screwdriver for the screws inside) or a Flathead screwdriver that is the same diameter as the screw. Once you remove the last screw behind the battery pack you'll feel the controller start to come apart. You can lift the front of the controller off.