51
Before using the terminal
•
The PIN Unlocking Key is written on the
subscription form (copy for customer)
handed when subscribing at a docomo
Shop. If you subscribed other than at a
docomo Shop, ask the contact on the last
page.
■
PIN/Password for screen lock
It is a security code for using the screen lock
function of the terminal (P.213).
■
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 "
お客様サ
ポート
(Customer support)". It can be set
any number at the subscription and also
changed later by yourself.
•
For details on network security code, refer
to NTT DOCOMO website.
■
PIN code
nano SIM card/eSIM has a security code
called as PIN code. The code is set to "0000"
at subscription, which you can change by
yourself (P.52).
PIN code is a 4- to 8-digit security number
(code) that must be entered for user
confirmation to prevent unauthorized use
of nano SIM card by a third party every time
you insert the nano SIM card/eSIM into the
terminal or when the terminal is powered
on. Entering the PIN code enables making/
receiving calls and terminal operation.
•
For using a newly purchased terminal
with the nano SIM card you are using so
far inserted, 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 "PIN Unlock Key (PUK code)"
(P.51).
■
PIN Unlock 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 nano SIM card/eSIM
will be locked. In that case, ask the contact
on the last page.
Summary of Contents for Xperia 1 IV SO-51C
Page 1: ...INSTRUCTION MANUAL ...
