problems i have had, and have helped others with, are........
bad wire in plug to reciever.
bad software update
and wrong motor choice.
to check wires, get a sharp blade, lift up the tag on the connector to allow you to remove the plug. check all wires.
keep trying to connect the hotwire, restart windows if need be, and just keep trying.
if you ucan disconnect your motor, do so, this does help if settings have changed.
wrong motor choice has made the ESC not chime, not calibrate, and simply not function.
so these are some choices to look into your problems.
