TP-Link M5250 User Manual page 30

M5250 3G Mobile Wi-Fi User Guide
enabled and verified, you can select Disable and enter the current PIN code, or select Modify
and enter the required parameters to set a new PIN code, and then click Apply to make your
settings take effect.
Figure 4-18 PIN Configuration - PUK Decode
A PUK (PIN Unlocked Key), also known as Personal Unlock Code (PUC), is used in 3GPP
mobile phones to reset a personal identification number (PIN) that has been lost or forgotten.
The PUK is a SIM-specific code assigned by the service provider. If a user does not know his or
her PUK and is prompted for it, it should be obtained from the service provider.
On the page as shown in Figure 4-18, first enter the PUK code and then set a new PIN code to
unlock your SIM card as well as any device with it inserted.
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