Stilo Changing Key Fob Case

The battery tray on my new case is screw in, rather than the lock unlock screw on factory key, so I have to do this - you can check see whether you need to or not. If compatible there is no reason why you cant re-use your old battery tray.

There are two bits you need to change over to the new battery tray. The first is the obvious contact clip - the other is the little black weather seal around the base of it.

The contact clip is held in place by 3 x little barbed tangs, you should be able to convince these out with a tiny flat point screw driver. Again care needed not to bend it too much. Work out out at a time.

Clip it into the new battery tray. One of my clips wouldnt hold but it isn't vital as it'll squeeze between the circuit board and battery to make suitable contact anyway.

Insert battery - the battery is negative side up - so the contact clip hits negative. Nice and easy.

The weather seal is basically a rubber band. Be gentle on it as it may be brittle and stretch. I gently pried mine out with screw driver and slide it over the short end. Refitting is straight forward but make sure it pushes into the channel for it properly on new key, else it will pinch when trying to fit the tray.

Then install the tray into the key. Clip the non-screw end into the key first at an angle, then put the screw end down into the key. Insert screw to complete.