Important note: if the update fails for any reason, the bootloader will stay alive. Fast LED flashes
means it stays in bootloader mode, slow LED flashes means it could not start the loaded software
because it is not valid. To make sure to catch the bootloader after a failed software update do:
1. power the FC, prepare everything but dont power the ESC's.
2. Press the start button and power the ESC's one second after that.
Failure Analysis
Error:
Solution:
The ESC shows no reaction
Check the power supply (LiPo terminal 2 and 3)
LiPo connected?
The LED (8) lights up after connecting the power
plug but then stays off.
1. Check signal connections (4 or 5).
2. Teach the master travel again (see ESC/ speed
controller settings).
The engine trundles only and does not rotate
properly
Check the 3 motor connections (1) on contact
(some motor cables are painted and must be
stripped).
The Copter looses power after some time.
The ESC goes into its temperature protection.
Reduce the load or give it more cooling.
The Copter jerks at full speed
1. the ESC might go to its overcurrent
protection. In this case it reduces its max
current to 40A. This reduction can confuse the
FC. Please lower the load in this case.
The ESC does short beeps.
1 beep each second: too many Dshot errors.
2 beeps each second: the ESC disarmed because
of a too long period without a valid input signal.
3 beeps each second: the motor was blocked or
couldnt get startet.
