Please charge the device for 2 hours and then insert any activated GSM SIM. It must have call, SMS and 500mb data
Switch on the device after inserting the SIM. SMS HM1 to the device eg. if master number is 9123456789 and device Sim number is 1122334455 then SMS will be HM1 sent to 1122334455
Login using device ID and password then use manual to do further settings.