Pin And Puk - Huawei G5520 User Manual

In standby mode, select Menu > Settings > Security
1.
settings > Phone security > Phone lock.
Enter the preset password.
2.
To change the preset password:
In standby mode, select Menu > Settings > Security
1.
settings > Phone security > Change password.
Enter the preset password.
2.
Enter a new password.
3.
The password must be a numeric string between four and
eight digits.
Enter the new password again to confirm it.
4.
If you forget the password, contact your service provider.

PIN and PUK

The personal identification number (PIN) protects your SIM
card from unauthorized use.
If you incorrectly enter the PIN a specified number of times, the
PIN is blocked and the phone prompts you to enter the PIN
unblocking key (PUK). If this occurs, enter the PUK to unblock
the blocked PIN.
If you incorrectly enter the PUK a specified number of times,
the SIM card will become permanently invalid, and you must
contact your service provider for a new SIM card.
Both the PIN and the PUK are provided with the SIM card. For
details, contact your service provider.
To enable the PIN lock:
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