My device is asking for a PUK code, what do I do?

My device is asking for a PUK code, what do I do?

This occurs when SIM PIN is entered incorrectly 3 times.

Be careful, do not attempt to guess this code! A PUK code is a security feature enabled when you incorrectly enter your personal PIN code into the phone.  PUK stands for Pin Unlock Key and is kept by M2M One to help protect your SIM card from unauthorised use. To get the PUK code, contact M2M One support on 03 9696 3011.

Incorrectly entering the PUK code ten times will destroy your SIM card. This is a safety feature to help guard against an unauthorised person using your SIM card.

Example:

Mobile equipment is waiting for PUK code:

AT+CPIN?
+CPIN: SIM PUK

Unlock the mobile equipment with 8 digit PUK code and new SIM pin:

AT+CPIN=00001111,1234
OK


    • Related Articles

    • Technical Support Contacts

      You can call M2M One technical support on +61 3 9696 3011 – between 8:30am and 5:00pm (Melbourne Time) Monday to Friday. You can also submit a trouble ticket through support@m2mone.com.au or by using our Support Portal.

    • M2M One network coverage and operating frequencies

      The Telstra Mobile network offers the best breadth and depth of third generation mobile coverage in Australia covering more than 2.1 million square kilometers. The network provides mobile broadband access to 99% of Australians, spanning city to ...

    • I have received my SIM card and it's not working

      Please check the following: Is the SIM inserted correctly? Is the hardware/device powered up correctly? Have you configured the correct APN? If possible check the devices SIM status (menu, GUI, LED, etc) or by issuing the AT command AT+CPIN? The ...

    • What APNs (Access Point Names) are available?

      M2M One can provision SIM cards with the following APNs: telstra.m2m – Assigns your device a private dynamic IP address with direct internet access using NAT. telstra.internet – Assigns your device a private dynamic IP address with direct internet ...

    • What is the SIM card IMSI?

      Each SIM card can be identified on each operatior network by its international mobile subscriber identity or IMSI. M2M One IMSI format is (15 digits): First 3 digits are Mobile Country Code (MCC). Next 2 digits are Mobile Network Code (MNC). Followed ...