D-Link DSL-2750U User Manual page 155

DSL-2750U Wireless ADSL2+ Router with 3G/LTE/Ethernet WAN Support
and USB Port
User Manual
To disable the PIN code check, in the PIN Code Request section, enter the current PIN code in
the PIN code field and click the DISABLE button (the button is displayed if the PIN code check is
enabled).
To enable the PIN code check, in the PIN Code Request section, enter the PIN code used before
disabling the check in the PIN code field and click the ENABLE button (the button is displayed if
the PIN code check is disabled).
To change the PIN code, in the Changing PIN Code section, enter the current code in the PIN
code field, then enter a new code in the New PIN code and New PIN code confirmation
fields and click the SAVE button.
If upon one of the operations described above you have entered an incorrect value in the PIN code
field three times (the number of remaining attempts is displayed on the page), the SIM card inserted
into your USB modem is blocked.
Figure 122. The USB Modem / PIN page. The PUK code request.
For further use of the card, in the Authorization section, enter the PUK code in the relevant field,
and then specify a new PIN code for your SIM card in the New PIN code and New PIN code
confirmation field. Click the APPLY button.
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