Sony Xperia 1 User Manual page 74

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・Show passwords
Enable entered characters to be visible
before changing to "●" in text entry
window for SIM PIN / screen lock PIN /
password.
・Device admin apps
Enable/disable applications managing
handset.
・SIM card lock
Advanced Make settings for SIM Card lock.
・Encryption & credentials
Make settings for encryption and
credentials.
・Trust agents
Enable/disable Trust agents.
・Screen pinning
Set to keep only screen of specified
application in view. When set to ON,
pinned screen cannot be moved.
1 Screen view may differ depending on usage.
Enabling SIM PIN
When PIN is enabled, a window for entering PIN appears to
allow handset use each time handset is powered on with SIM
Card installed.
In Home Screen, (Settings)
Advanced
SIM card lock Lock SIM card
( )
PIN is enabled.
PIN Cautions
Entering incorrect PIN three consecutive times activates
PIN Lock. To cancel, Personal Unblocking Key (PUK) is
required; contact Customer Service. Entering incorrect PUK
ten consecutive times locks SIM Card, disabling handset.
For recovery, SIM Card must be reissued at a SoftBank
Shop (fees apply).
Lock screen & security
Enter PIN OK