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Unscrew the 4 screws at the back, and insert the Viettel SIM card in the designated sloth.
There are 2 power supply wires pre-connected; a bleu one for connection to 12V
and a black one to Ground (0V of the electric system). In case you need to re-connect the power supply cables inside the device, make sure to connect correct at + and – as pointed out in the device.
Installment and the needed wiring are best being done by an expert of the specific vehicle.
The device can be best installed out of direct view; e.g. in the trunk. To give options of mounting, there is a hole right through the case, to be used as the main screw-point or ty-rap fixation.
Make sure the GSM antenna is screwed on, into the right-side corner of the device, and the GPS antenna cable on the topside.
Do not use any tools to screw the antennas onto the device; screw only by hand.
The GSM antenna can be placed under any needed angle to save space.
If the GSM antenna is fixed in length with the casing, you can slide the rubber Corner Cover over the antenna, and force it into position.
The GPS antenna is best to be placed under windshield or rear window using the inside magnet, or the provided double coated foam tape.
Depending on material used in your dashboard, the antenna will also receive well inside it, for instance in the glove compartment. This however should be tested first; in general all GPS antennas do need free view of a part of the sky (despite claims otherwise).
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