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22
Security Codes
Code Types
Some functions/services require these codes for use.
・Do not reveal Security Codes. SoftBank Mobile is not liable
for misuse or damages.
・If you forget Security Codes, contact us for recovery. For
more information, see
SoftBank Mobile Website (http://
mb.softbank.jp/en/).
Types
4-digit code in contract: Change services;
Center Access
use Optional Services via landlines; or set
Code
call restrictions
Details
USIM PIN
A four-to-eight-digit code to prevent unauthorized use. It is
set to 9999 by default.
Enabling USIM Card Lock
In Home Screen,
Settings
Location & security
Set up SIM card lock
Lock SIM card
USIM PIN
OK
PIN is enabled.
(
)
Enter
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