FAQ & Payment
1. I call the tracker, it does not ring.
(1) The GSM SIM card has no credit; pls charge credit
(2) Power is used up, so pls recharge it.
(3) Check if the SIM card is placed correctly in the slot;
(4) Check the connection of the GSM antenna, or change another GSM antenna to test;
2. I call the tracker, it rings, but I can't receive any reply from tracker, like this: CHK, ARM, DSM, MAP, etc.
(1) First of all, pls call tracker sim card number and make sure you can get through.
(2) The SIM card inside the tracker has no credit. Pls charge
(3) The SMS instructions are not correct, including wrong format or wrong password.