Appearance; Led Indicator - Globalsat GTR-128 Quick Start Manual

1.4 Appearance

1.5 LED indicator

Normal mode:
LED status
Red blinking
Red solid
Yellow solid
Green solid
Hiding mode: Device would blink red light while it is booting up. After completing the boot, the
LED would go off.
1
1 LED
2 For fixing device with Velcro tape
3 Hook for screw/ unscrew back cover
Description
Device is being boot and SIM card not
ready
SIM card ready, but GSM not registered
GSM registered, but GPRS not connected
GSM registered, and GPRS connected
2
3
5
2