3、Use steps
SIM card placement
Please make sure that the SIM card is not enabled for call forwarding and caller ID display and the PIN code is turned off. The mobile phone message must be in plain text format and cannot recognize the PDU format.
- Remove the soft plug
- Insert the SIM card with the chip facing down and the notch facing in (look pictures)
LED Indicator Definition
Green Indicator：GPRS
| Status of indicator | Meaning |
| Flash | GSM/GPRS conversation start |
| Continuously in bright status | No GPRS signal |
| Green Led off | Power off or in sleep mode |
Blue Indicator：GPS
| Status of indicator | Meaning |
| Flash | GPS location successful |
| Continuously in bright status | GPS signal searching |
| Blue led off | Power off or in sleep mode |
Red Indicator：Power charge
| Status of indicator | Meaning |
| Continuously in bright status | charging |
| Red led off | Power off or charged full |
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