Hubsan Official Forum

Hi there,

I have a H107D+ which ran well. Now the motors no longer respond to throttle command. I turn on the transmitter, I turn on the X4 (drone), the transmitter binds to the drone and the drone led lights are lit steady (no flashing).....yet the motors do not turn on (rev) when I push the throttle stick.

Help ?

Thx
Metman

Hello Metman ,

May I know if you do the transmitter calibration as quoted in the user manual?
push both sticks to the upper left position and hold ,then power on the transmitter.Rotate both sticks twice.Hold down any trim until the LED on the transmitter blinks red,indicating a successfuly calibration.