29
Basic Operations
Xperia™ Z4
SIM PIN
PIN is the security code for your SIM Card. It prevents
third parties from unauthorized use of handset. At time of
purchase, "9999" is set.
Enabling SIM PIN
Enable SIM PIN to show PIN entry window when handset power
is on with SIM Card inserted.
In Home Screen,
(Settings)
Security
Set up SIM card lock
Lock SIM card
Enter PIN
OK
PIN is enabled.
PIN Cautions
Entering incorrect PIN three times locks PIN. To release
locked PIN, enter PUK (Personal Unblocking Key). For
details on PIN, contact
incorrect PUK ten times consecutively locks SIM Card to
disable handset operations. In that case, reissue of SIM
Card at a SoftBank Shop (paid service) is needed.
Changing SIM PIN
Operation can be performed only when PIN is enabled.
In Home Screen,
(Settings)
Security
Set up SIM card lock
Change SIM PIN
Enter PIN
OK
Enter new PIN
OK
Enter new PIN again
(for confirmation)
OK
PIN is changed.
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