1. Check whether the antenna is normal. If not, replace the GPS antenna.
2. Check whether the GPS Settings are correct. If not, reset it.
3. The antenna may be in a shielded environment. Please try it in an open space.
Q
Reception indicator is green but no sound.
A
1. Check whether the volume in the minimum gear. If yesr, increase the volume.
2. Check the speaker for damage. If damaged, please replace it.
Q
Unable to receive signal
A
1. The antenna is not in good contact. Tighten the antenna head.
2. The network fluctuates greatly, you can try to install a SIM card to test the network connection speed.
Q
Keep rebooting after booting
A
The supply voltage is too high, the operating voltage is 13.6V±10%.
Q
No response after power-on
A
1. Check whether the battery is powered. If the battery is low, charge it and try again or replace the battery pack with a new one.
2. The ON/OFF button is not in good contact. Clean the port with alcohol and try again.
3. The power terminal is not in good contact with the power supply. Reinstall it and try again.
4. The reverse connection of the power supply leads to an open fuse of the power cable. Replace the fuse and try again.
Q
Normal call interrupted
A
You may receive a call with a higher priority or an emergency call. You can set up the call again after priority calls.
Q
After installing SIM card, the boot indicator flashes red and cannot log in normally
A
1. Check whether the SIM card has a locked PIN (can be viewed on the mobile phone)；
2. Check whether it is necessary to set the corresponding APN (the one who sells the card knows the APN)；
3. Check whether the SIM card is a directional traffic card. If it is a directional traffic card, you need to bind the IP of our server-related domain name (contact the manufacturer).
