Roadragon TK-6WT, User Manual, Page: 7 / 17

With this data, we can manually configure the APN by sending the following
SMS message to the SIM number in the device (by entering the specific values
of the Operator):
pw,123456,apn,APN name,username,password,PLMN#
Example1:
1. APN name: telstra.internet
2. Username:
3. Password:
4. MCC:505
5. MNC: 01
The SMS command to be sent to the SIM number in the GPS Tracker is
pw,123456,apn,telstra.internet,,,50501#
Even if the values of username and password are empty, but commas must
be there. MNC need to be no less than 2 digits, for example, 02 is better than 2.
Example2:
1. APN name: tmobil.cl
2. Username: wap
3. Password: wap
4. MCC:730
5. MNC: 2
The SMS command to be sent to the SIM number in the GPS Tracker is
pw,123456,apn,tmobil.cl,wap,wap,73002#
SMS Command should all be small letters without spaces.
after sending the SMS command, you will get SMS reply 'set apn.. is successful',
and it is necessary to restart the device
6) Watch Parameters: