i have and amp 2and NTM Prop Drive Series 28-30A 750kv / 140wi changed my esc to "turnigy plush 25a" and my motor to 28-30 750kv and update the software to mission planner 1.2.11 and the firmware to 2.7.3 (amp2) after i connecting all together and powering i her telooloom from the esc and ten i arm the amp 2 but nothing happensor sometimes when i conneting the power i hear bip .... bip .....bip........... the tx is connecting and work fine what i need to do ?…See More