Huawei Mobile Phones User Manual page 8

Press...
Activate or deactivate the Silent profile in

standby mode (press and hold the key for
about 3 seconds).
Enter a period in editing mode.

Enter the number or symbol labeled on a

key (press the alt key once and then the key
labeled with the number or symbol that you
want to enter).
Lock the text input mode and continuously

enter the numbers or symbols labeled on
keys (press the alt key twice and then the
keys labeled with the numbers or symbols
that you want to enter).
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