How to assign a PIN to a SIM card?

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How to assign a PIN to a SIM card?

I want to assign a security code to my SIM card.

On my iPhone, when I go to Settings > Cellular > SIM PIN, I see the attached screen. When I turn on the SIM PIN slider and enter a code, however, I get an "unable to lock SIM card" message.

Today I went to an AT&T store for assistance. The AT&T person said it is not possible to assign PIN codes to AT&T SIM cards. That sounded odd to me, so I thought I'd double-check on this forum. Is there no way to assign a security PIN code to an AT&T SIM card?

FYI that my iPhone now shows "2 attempts remaining", so I don't want to attempt trail-and-error solutions that might lock my SIM card. Thx.

iPhone XS Max, iOS 14

Posted on Sep 15, 2021 8:49 AM

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Answer 1

bailier

Community Specialist

Sep 16, 2021 10:15 AM in response to PommePourMoi

Hello PommePourMoi,

Thanks for choosing the Apple Support Communities. If we understand correctly, you want to assign a pin to your SIM card. We can understand why you'd reach out for a solution.

Here is a resource that can help.

Use a SIM PIN for your iPhone or iPad

Please follow those steps carefully and if you have any questions we do suggest to continue to work with your carrier to avoid locking your SIM card.

Cheers!

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How to assign a PIN to a SIM card?

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