Verykool R13 - Manual (Page 26)

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automatically powered on/off at the corresponding
setting time.
Language: you can set the language of the
mobile phone.
Pref. input methods: there are multiplicities input
methods to be selected. You can choose one as
the default original input method for text editing.
Display: you can set the function such as wallpaper,
screen saver, power on/off display, show date and
time and so on.
Dedicated key: set shortcut on each navigation
key.
UART settings: set default UART to SIM1 or SIM2.
LCD backlight: you can set the Brightness and
Time of the LCD backlight respectively.
4.7.4 Network settings
In SIM1/SIM2 network settings, you can select
appropriate network.
Note:
Please do not register networks inconsistent
with the SIM card, so as to prevent
unavailability of normal use. For details,
please consult your service provider.
Network
selection: search new network
according to the network searching mode or select
the network you need from the network list.
Preferences: select and set the preferences of
network.
4.7.5 Security settings
4.7.5.1 SIM1/SIM2 security settings
SIM1/SIM2 lock: this function can prevent others
from using your SIM card without your permission.
After the SIM card PIN code is activated, correct
PIN code must be input every time when the
mobile phone is powered on; otherwise you can
only make emergency call.