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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/#pagetop).
Types
4-digit code in service contract:
Center Access
Change services; use Optional Services via
Code
landlines; or set call restrictions
9999 by default:
Lock No.
Use Security Lock functions
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,
System settings
Security
Set up USIM card lock
Lock USIM card
Enter USIM PIN
OK
PIN is enabled.
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)
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