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 Advanced.
3. Depending on the phone model, do the following:
   • Single SIM model: Tap SIM card lock.
   • Dual SIM model: Select which card you want to assign a new PIN to.
4. Tap Lock SIM card, enter the default PIN of the card, and then tap OK.
5. Tap the Lock SIM card On/Off switch to turn it on. Enter the default PIN of the card, and then tap OK.
6. 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 U12+‍. Contact your mobile operator for this code.

1. When prompted, 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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