* X9D: Select D8 mode, power on receiver press and hold BIND, then led light, select BIND on transmitter, receiver led off means binding is completed, transmitter exit binding mode, release BIND key and re-power.
* DJT, DFT: Hold the TX module button and power on transmitter, at this point the TX module get into binding mode. Power on receiver press and hold BIND, LED off when binding completed, release BIND key after transmitter restart, finally restar receiver.
* XJT: Dip switch select D8 mode, and then the same way as above.
Currently only support the third channel failsafe, can not be defined by yourself, so keep the throttle channel in the third channel.