are you talking about the solderd part where the heatshrink is? the one i have that came with the sim is beige in color and has a big heatshrink in the middle? then i use the adapter for my 9C
mannyh
ORIGINAL: Cryhavoc
Mine did that and it was just a loose connection where the transmitter adapter plugged into the USB cord. I cleaned the connection and it's been fine every since.