How to open the Spektrum (Arrma) DX3 transmitter

Opening the Spektrum DX3 transmitter

Open the transmitter by loosening the 9 screws on the side. Now the bottom part will open, carefully use a knife to undo the glue on one side that holds the top sticker.

There is no need to remove the steering wheel

Remove the steering wheel

There is a plastic insert that you can remove with a knife, after that the wheel is attached with a single screw