What you will need: a drill with small drill bits and various phillups and flathead bits,an allen wrench that fits,soder and sodering tool if you screw up,and tape dosen't matter what kind. 1.Take out battery pack(DO NOT ATTEMPT WITH IT IN I GOT SHOCKED) 2.Remove details remove all 4 pins for the quick recharge socket and belt clip. 3.Drill a hole in the center of the blade power adjust(on front) and blade length adjust(on back) and unscrew. 4.Pry the golden design plate in the activation box and unscrew(DO NOT PULL HARD)unscrew tiny screws and pull it out. 5.Push switch in to the hole in the case if its not big enough then use a drill. 6.Unscrew the Allen head screw at top.(DO NOT REMOVE PRIOR TO THIS STEP) 7."Genty"pull blade out of outer frame. 8.Locate the two metal pins at the top that go all the way through the frame and hammer out with a small screwdriver and pull out with plyers. 9.Slowly pull out blade and set aside. 10.Put it all back togeather and turn on you should have sound and motion control insert blade when ever you wish on or off it will still light when on.