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

Вопросы и ответы

After making a phone call to the unit, no SMS is received.

2011-3-28

1. Battery is low. Charge the unit with 12V external power for at least half an hour;
2. Make sure the unit is already connected to GSM network (Green LED flashes 0.1 second on and 2.9 seconds off). If not, please first refer to above question - Green LED stays 1 second on and 2 seconds off (can’t get GSM signal) after the unit is turned on.
3. SIM card has run out of credit. Please top up the SIM card;
4. SIM card doesn’t have function of displaying incoming call number. Use a mobile phone.