Dell Mini 3v - Manual (Page 41)

l Change PIN2 - Select this setting to change PIN2.
l Change call barring password - Select this setting to change the call barring password.
l Change factory password - Select this setting to change the factory password.
l Restore factory password - Select this setting to restore the factory password.
l Credential storage - Select this setting to allow applications to access secure certificates and other credentials.
USIM Card Lock
Select this setting to open USIM Card lock settings where you can enable the USIM Card lock and change your pin code.
l Lock USIM card - Select this check box to lock your USIM card.
l Change UPIN code - Select this setting to change your USIM card PIN code.
Phone Lock Settings
Select this setting to open Phone lock setting where you can enable Phone lock and change your password.
l Phone lock - Select this check box to enable or disable phone lock.
l Change password - Select this setting to change the password for your phone.
l Data protection - Select this setting to turn on data protection.
Using Credential Storage
Select this setting to allow applications to access secure certificates and other credentials.