3 LED status indicator and wiring
3.1 Red LED (power/working status indicator)
Status Meaning
Quick ashing Low battery
Slow ashing Fully charged
Continuously in bright Charging
Continuously in dark No battery/troubleshoot
3.2 Blue LED (GPS signal indicator)
Status Meaning
Quick ashing Searching GPS signal
Slow ashing GPS signal has successfully
Continuously in dark GPS stops working
3.3 Green LED (GSM signal indicator)
Status Meaning
Quick ashing GSM initialization
Slow ashing GPRS online
Continuously in dark No GSM signal or no SIM card installed