Why can't activate the equipment? Q A Possible reasons ： The equipment isn't connected; The serial number and activation code are inputted wrong; The activation code is invalid; The configuration is empty. Solution ： Make sure the network is connected; Check the serial number and activation code and make sure they are correct (serial number 12 digits, activation code 8 digits); Contact TOPDON after-sales service to get support; Contact TOPDON after-sales service or regional sales. Server problem ： Server maintenance. Please try again later. 30