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Press and hold the icon for 2 seconds
to restore the device to factory settings,
with the exception of the Wi-Fi network
settings.
Use the arrows to select a different
reset mode.
Resetting the device and updating
the firmware
With the device in manual mode , press
and hold the areas shown in figure
A
for
5 seconds. You will hear a beep and the
screen shown in figure
B
opens.
Cleaning the screen
With the device in stand-by mode, press
and hold the
button for 5 seconds
F
.
A beep and flashing icon indicate
that the screen is sensitive to touch for
30 seconds.
Note: Only use a soft, dry or slightly damp
cloth to clean the terminal. Do not use any
chemical products.
Checking the Wi-Fi signal quality
The screen shown in figure
E
shows the
reception quality of the Wi-Fi signal (as a
percentage).
A reception quality <20% is insufficient.