[racingdwarf]

few years ago we started to tape around the outside of the spectrum module when removed from transmitter then re fit, it makes the module a far tighter fit with no play and thus no play on the connecting pins inside, I think this was to solve a problem like yours, I have to admit I did the mod before I had any problems, I have had my ko since they were first on the market and its still going strong even if in the last year it has become my second transmitter….to a sanwa