Verykool i127 - Manual (Page 19)

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By default the Centre Navigation key shortcuts are set as below:
UP: Video player
Down: Alarm
Left : Profiles
Right: Messaging
 Auto update time: According to the operator to adjust the time.
 Flight mode：You can set up flight mode.
 Misc. Settings

LCD Backlight: Here are set LCD brightness and time.
 Keypad light: Set the keypad backlight time.
2.8.4. Network settings
You can set up the phone network with this function.
SIM1/SIM2 network settings
 SIM1: Choice the modes of searching the phone network, including Auto and Manual modes.
 SIM2: Same with SIM1.
 GPRS transfer pref.: Select GPRS preferred.
2.8.5. Security settings
You can manage your phone safely with this function.
The phone lock password, SIM card password and PIN2 support 4-8digit numbers, do not support other characters. The original password of the phone when
leaving the factory is 0000. The password and PIN2 and SIM card are provided by the network operator. When the PIN/PIN2 is input wrongly in successively
three times, the SIM card will be locked.
The PUK /PUK2 are required to input if you want to unlock the SIM card. The PUK/PUK2 is provided by the network operator. If the PUK is input wrongly in
successively 10 times, the SIM card will be locked and discarded permanently.
a) SIM1 security
 PIN lock: open or close the PIN lock function. When PIN lock is launched, the PIN shall be input upon each power-on.
 Change PIN: PIN lock must be enabled, Just can be change.
 Change PIN2: input the correct PIN 2. Just can be change.
The SIM2 security setup is same to the SIM1 security setup.