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◆Installation attentions
NOTE: device front side towards the sky.
When install in car, if the windscreen glued by metal thermal insulation layer or
heating layer, it will reduce the GPS receive signal and lead to GPS work
disorder.
◆Attentions
◆Device light
1）No yellow light: failed to read SIM card, need reinstall SIM card.
2）Blue light flash: no GPS signal, make sure device started outside.
3）Three lights off: lights entered sleep mode, make a call can wake up.
◆Device failed located
1）Failed located: message replied with all 0, make sure device started outside
not in room.
2）Can’t reach the call: make sure SIM card has balance and installed properly.
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