Phone Lock - LG U8150 Manual Del Usuario

Settings
9.6.2.2 PIN 2
PIN2 is the abbreviation of Personal Identification Numeric 2, and is
used to restrict the use of unauthenticated users like PIN. PIN2
numeric change procedure is the same to that of PIN. 3 incorrect
PIN2 code entries would invalidate the PIN2 code. In this case, you
have to input PUK2 to use the PIN2 code again. The maximum
allowed numeric of attempts of PUK2 input is 10 times, like PUK1.
10 incorrect PUK2 entries would invalidate the PUK2.
9.6.2.3 Security code
The security code is used to change the mobile phone password.
The maximum allowed numeric of attempts of security code input is
not limited like PIN and PIN2.
9.6.2.4 Barring password
See Incoming call of Call Barring section.

9.6.3 Phone Lock

You can lock your mobile phone to prevent it being used by other
people. The following 4 lock functions are provided.
- Power On : Whenever the mobile phone is turned on.
- If SIM Changed : When the mobile phone's SIM card has been
changed.
- Immediate : Locks the phone immediately.
- None : Cancels lock function.
9.6.4 Certificates
If stored, a list of root/ca certificates required for WTLS/TLS can be
found here. Certificates can be viewed or deleted from the list.
9.6.5 Session clear
Secure (WTLS/ TLS) session data can be cleared using this option.
Session data should be cleared to establish a new secure session.
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U8150 User Guide