Operation Manual

• Trouble Shooting
No. Fault
Possible Cause
1 No power on
Battery drained (The screen
has no further display after a
blink when pressing power on
button.)
2 Dead Unit
The start interface stays on the
screen for long time without
changing.
No display of the screen, or
display on screen is frozen as
any button is pressed.
3 Error in upgrade
Dead or frozen during
upgrade, display on the screen
is frozen and no button works.
4 Impossible to
recharge
During charging, the green
LED indicator of the device
has no light or no charging
sign displayed on the screen.
5 Coordinates
Calibration
failure
The click position is not match
with the reaction position after
starting up the device
Possible Cause
Solutions
Battery drained (The screen
has no further display after a
blink when pressing power on
button.)
Please refer to the description of
battery charging in this manual,
only use the enclosed ch
charge the device.
The start interface stays on the
screen for long time without
changing.
Press reset on back of PND.
No display of the screen, or
display on screen is frozen as
any button is pressed.
Press and hold the power on
b
utton for 5 seconds, then release
it to power on.
Take out the battery, then put it
back, start the device again.
Dead or frozen during
upgrade, display on the screen
is frozen and no button works.
This fault can only be fixed by
manufacturer. Please return for
repair.
During charging, the green
LED indicator of the device
has no light or no charging
sign displayed on the screen.
If the charger is connected
properly and powered.
Charger is damaged.
Battery is damaged or full charged.
The click position is not match
with the reaction position after
starting up the device
。
Power off and then press the
power button for 6
select Coordinates Calibration
operate。
17
Please refer to the description of
battery charging in this manual,
only use the enclosed ch
arger to
charge the device.
Press reset on back of PND.
Press and hold the power on
utton for 5 seconds, then release
Take out the battery, then put it
back, start the device again.
This fault can only be fixed by
the
manufacturer. Please return for
If the charger is connected
properly and powered.
Charger is damaged.
Battery is damaged or full charged.
Power off and then press the
power button for 6
-9 seconds,
select Coordinates Calibration
to