Sony Docomo Xperia Z1 SO-01F Instruction Manual page 166

The PUK code is written on the
subscription form (copy for customer)
handed at the subscription in the
docomo Shop. If you subscribed other
than docomo Shop, you must bring your
official identification (such as drivers
license), the docomo mini UIM card with
you to the nearest docomo Shop or
contact the "General Inquiries" on the last
page.
Network security code
The network security code is a 4-digit
number necessary for identification or using
the docomo Network Services at reception
of your request in docomo Shop, or at
docomo Information Center or "
(Customer support)". It can be set
any number at the subscription and also
changed later by yourself.
You can change your network security code
to new one using a PC if you have "docomo
ID"/"Password" for "My docomo", the
General support site for PC.
Alternatively, from the Home screen,
u
[dmenu] [
u
[
support)]
applications/procedures)] to change the
security code yourself.
* For information on "My docomo" and "
(Customer support)", see the
previous page of the last page.
(Customer
(Various
PIN code
You can set security code which named PIN
code to docomo mini UIM card. It is set
"0000" at the subscription. They can be
changed by yourself.
PIN code is a 4- to 8-digit security number
(code) that must be entered for user
confirmation to prevent unauthorized use
of docomo mini UIM card by a third party
every time you insert the docomo mini UIM
card into the terminal or when the terminal
is powered on. Entering the PIN code
enables making/receiving calls and
terminal operation.
If you use a newly purchased terminal
with docomo mini UIM card you have
been using, use the PIN code set on the
former terminal. If you did not change the
setting, the code is "0000".
If you enter a wrong PIN code 3 times
consecutively, the PIN code is locked and
cannot be used anymore. In this case,
unlock with "Personal Unblocking Key
(PUK code)" (P.164).
Personal Unblocking Key (PUK code)
The PUK code is an 8-digit number for
canceling the locked PIN code. The PUK
code cannot be changed by yourself.
If you failed to enter PUK code 10 times
consecutively, the docomo mini UIM card
is locked. Please contact a docomo Shop.
Settings
164