LED sequence of Dongle
- Power off
- Green LED is off, red LED is off
- Bootstrapping
- Green & red LEDs blink alternately every second
- Initialization
- Green LED blinks every 0.5s
- Running
- Green LED blinks every 2~3s
- Running - GPS no fix
- Red LED blinks 3 times repeatedly
- System Error
- Red LED is on (not blinking)
- Sleep
- Green LED is on for 5s and off for 5s alternately