I've read through as many other threads about this issue as I could with no luck. My Evo 1 shows no pairing light at all and the controller is not pairing with the unit. I've tried manually updating the firmware to the most recent, which was already updated, to both unit and controller. It was working just fine before the last use and this unit has less than 2 hours of use on it. Batteries are good and everything works as normal. At a loss except to try and find a salvageable crashed unit for parts. Any help is greatly appreciated. Thanks.