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8 Basic Operation
Mobile lock On/Off
You can lock your phone to avoid accidental or intentional misuse of it.
Key guard
Key guard is used to prevent any keys from being
accidentally pressed.
In idle screen
1. Press and hold < (Menu)
2. Press < (On)
3. Press < (OK)
To release Key guard
1. Press < ()
2. Press < (OK)
Phone lock
See “Phone lock” on page 35.