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Security
Line Security
If your phone displays Line Not Secure while you are on a
call, your phone has detected another device monitoring
the call. This message does not appear when caller ID, call
cost, or other information fills the display.
Locking and Unlocking Your
Phone
A locked phone still rings or vibrates for incoming calls or
messages, but you must unlock it to answer.
Lock Your Phone Manually
Find the Feature
Set Your Phone to Lock Automatically
You can set your phone to lock every time you turn it off:
Find the Feature
Changing Your Unlock Code
Your phone's four-digit unlock code is originally set to
1234, and the six-digit security code is originally set to
M
> Settings > Security
> Phone Lock
> Lock Now
M
> Settings > Security
> Phone Lock
> Automatic Lock > On
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