Fnirsi GC-02 Gebrauchsanweisung Seite 24

5.3.4 Language, backlight, restoring factory settings,
about
Switch to backlight, restore factory settings, and
about.
Language setting: Press the up and down keys to
select the corresponding language and then press
the OK key
Backlight: The brightness of the backlight can be
adjusted by pressing the up and down keys.
Restore factory settings: Press the up and down keys
to confirm and then press the OK key to restore the
factory settings.
About: Display device model, version number, and
other information.