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Troubleshooting
Take these steps described in the tables below to solve simple problems before
contacting customer service.
If you suspect something wrong with this unit, immediately turn the power off and
disconnect the power connector from the unit. Never try to repair the unit yourself
because it is dangerous to do so.
PROBLEM
Users can't turn
on the unit.
There is no
sound.
Dark screen.
The unit can't
receive satellite
signals or can't
orient.
POSSIBLE CAUSE
The adaptor doesn't
connect well.
The built-in rechargeable
battery is weak.
The volume may be turned
down or mute.
There is no power supply.
The unit may be obstructed
by buildings or metal block.
22
POSSIBLE SOLUTION
Connect the adaptor
correctly.
Use the adaptor to supply
power or charge the
battery.
Turn up the volume or turn
on the sound output.
Connect the adaptor
correctly or charge the
battery.
Make sure to use the unit
out of room; if in the
vehicle, you can use the
external GPS antenna
to solve this problem.
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