So, my Viper VTX10R quit working today, right before the qualifiers started. Ran fine all day yesterday, and throughout practice, then failed. It turns on and initializes with two double beeps, then nothing. I get steering, but no throttle. The N and R LEDs are flashing, but I did not see that error code described in the instructions. What does the N and R LED flashing mean? I tried a different sensor cable, and even plugged the sensor cable into a different motor. Running a Durango DESC410R with a Novak 4.5 550. Had to quickly pull the Viper out and put my backup RX8 in before the first round started. Qualified BQ, won the B, bumped to the A, and finished 2nd, in a very competitive field. Gave the Viper to the hobby shop guy I bought it from to send it back to Viper for repair. Hope Viper gets their reliability issues resolved, the ESC is great when its working.