Assigning a PIN to a nano SIM card

You can help to protect the nano SIM card by assigning a Personal Identification Number (PIN).

Important: Make sure you have the default PIN provided by your mobile operator before continuing.

1. From the Home screen, swipe up and then tap Settings > Security & Location.
2. Tap SIM card lock.
3. Switch to the tab of the card you want to assign a new PIN to.
4. Turn on the Lock SIM card On/Off switch, enter the default PIN of the card, and then tap OK.
5. To change the card PIN, tap Change SIM PIN.

Restoring a nano SIM card that has been locked out

If you enter the wrong PIN more times than the maximum number of attempts allowed, the card will become ​“‍PUK-locked.”

You need a Pin Unlock Key (PUK) code to restore access to HTC Desire 12+. Contact your mobile operator for this code.

1. On the Phone dialer screen, enter the PUK code, and then tap Next.
2. Enter the new PIN you want to use, and then tap Next.
3. Enter the new PIN again, and then tap OK.

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