I'd rule out all physical drivetrain reasons first. Then it's on to electrics which can be tougher to fix. Maybe check your motor wires? Solder may have failed. Maybe rebind receiver to transmitter?
Happening to me atm now. 4 flashing green lights. No throttle only steering. Esc won't go into varible mode. Rx won't rebind with tx. And I can't factory reset
Really ? I changed recivers to my spare one and it still didn't work. I have a pinched throttle wire tho. From running on the servo mount. Might be my problem.