Huawei G2157, Руководство пользователя

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If you enter wrong PINs for a specified number of times
consecutively, the phone asks you to enter the PUK. If you enter
wrong PUKs for a specified number of times consecutively, the
SIM card is invalidated permanently. Contact your service
provider for a new one.
Locking the Keypad
In standby mode, press and hold for about 3s to lock the
keypad. To unlock the keypad, press and then in
succession.
If the
Keypad lock function is enabled and the phone is idle for
a preset period in standby mode, the keypad is locked
automatically.
When the keypad is locked, you can press
to
answer an incoming call or make emergency calls.
Changing the Text Input Modes
The indicator of the current text input mode is displayed on the
upper left corner of the screen. You can press
to change
the text input mode.
Indicator Text Input Mode
ABC, Abc and abc Multi-tap input mode
Eng Predictive input mode
123 Number input mode