Globalsat GTR-128 - Device Appearance; LED Status Indicator

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