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Standard keypad
On the keypad, you can see A-Z
（
0-9 number keys
）
number
keys, * key and # key, totally 42 keys.
Press these keys to input phone number, password, English
letters, symbols or choose menus.
In different states or different functional menus, “+” key and
“-“ key have different functions:
Press “SPEAKER” key long to start or exit from the silence
mode.
In music player state, “+” and “-” are used to adjust
volume.
AM/FM function key
OK key: In radio state, press the key to stop
In search state, press the left/right key to search channels
forward and backward, press the OK key until you find an
effective channel. For FM, you can have a tuning of 0.1MHz
downward or backward.
1-9 number keys: If they are pressed shortly, you can switch
to the corresponding channels saved in the channel list; if
they are pressed long, you can save the current frequency
to the corresponding channel.
+, - key: Adjust volume.
Keypad lock
When in standby interface, if the mobile phone is idle for
certain time, it will be locked automatically. Press the Unlock
key and “*”to release. After the mobile phone is locked, the
