Wouldn’t agree with people here - getting the ribbon back in is pretty finicky (much easier if you do it flipped over along the side, not like they have it in the photo), but I don’t see how you could get the joystick out and a new one in without moving it so much that you break it (then you’ve wasted the money on the kit and have to buy a whole new unit).

I however would agree that you don’t need to disconnect the battery or antenna. I pulled the antenna patch out of the midframe and let it dangle, but left the battery in and connected, and it was fine. Much better than removing them but leaving this fragile thing connected.