You know I was thinking BT. I don't see a problem with Hobbico covering the 3-in-1 under warranty, but this could be a good time to upgrade to a GY240 with a Pixie 7. If the main motor is still working then the 3-in-1 could stand in for a main motor ESC. The difference in flight control is huge. It does cost more money, but the gyro can go to the next size heli unlike the $85 3-in-1 which can't.