XK X4,X6,FUTABA Flybarless controller bind with C119 helicopter
1. connect helicopter battery to helicopter
2. press the receiver button for 3 seconds ,red Light flash slowly
3. turn on controller ,red Light become red and don't flash
4. Disconnect the helicopter battery and connect the helciopter battery agian , then controller can bind with the helicopter (Note: don't turn off the controller)
1 pcs