User's Manual

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User Guide Manual - 59
6. Trouble Shooting
Trouble Solution
The device is
frozen or
locked up.
Please reset the device by a Power On/Off
switch on the bottom side of the device.
Power does
not turn on
when using
battery
power.
The remaining battery power may be too low to
run the device.
Connect an AC adapter (or a car charger) to
the device and external AC power.
Check the Power On/Off switch on the bottom
side.
Something
wrong in the
LCD screen.
If it's dark, this can be from excessive
temperature. (Oper. temp.: -10 ~ +60 ℃ )
If it's hard to read, please check the back light
level.
If the screen freezes, please reset the device.
GPS signal is
not good.
Make sure that the GPS receiver is adjusted to
the horizontal position and it has a clear view
of the sky.
GPS reception can be affected by below
circumstance.
- Bad weather
- Dense overhead obstacles
(e.g. trees and tall buildings)
- Other wireless device in the car
- Metallic windshield coating
Looket optional external antenna will boost the
performance.