Changing Sim Pin - Sony XPERIA Manual

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
consecutive times locks SIM Card, disabling handset. For recovery, SIM Card must be
reissued at a SoftBank Shop (fees apply).

Changing SIM PIN

First enable SIM PIN to change PIN.
In Home Screen,
xperia_12_Handset Settings.docx
11
Enter PIN
(Apps) (Settings)
OK ( )
Customer Service. Entering incorrect PUK ten