GPS трекер Xexun TK 102, GPS трекер TK 102-2, GPS трекер TK 103

Вопросы и ответы

Why does GSM fail to communicate?

2011-5-9

1.Check if the SIM card is activated or not.

2.Check whether the SIM card has password or not.
3.Check if the SIM card is inserted properly.
4.If the vehicle is parked in a place where the GSM signal is weak.
5.GSM base station of mobile operator is crashing.
6.Whether this SIM card is suspended (such as forget to pay the bill…)