• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

AppleToolBox

Tools and Fixes for Mac, iPad, iPhone & iWatch

Search posts

  • About
  • Contact

CONNECT WITH US

CATEGORIES

  • iPhone
  • iPad
  • iPod
  • Apple Watch
  • Mac/MacBook
  • AirPods
  • Apple TV
  • News
  • Apple Services
  • HomePod
  • Reviews

SITE

  • Home
  • About Us
  • Contact
  • Advertise

Search posts

You are here: Home / iPhone / SIM PIN? Here’s What to Do If You’re Locked Out of Your SIM Card

SIM PIN? Here’s What to Do If You’re Locked Out of Your SIM Card

By Mike Peterson 10 comments Last updated January 31, 2019

Every cellular device — iPhones included — has a SIM card. To oversimplify a bit, it’s how your device connects to your cellular service.

Normally, you may not give your SIM card much thought. These days, new iPhones will already have a SIM card in them that is activated remotely. But physical SIM cards are still removable.

With that in mind, there’s actually a security feature in recent versions of iOS that you may run into problems with. It’s called a SIM PIN. Here’s what you need to know.

Contents

  • What is a SIM PIN?
  • What if I Forgot My SIM PIN?
    • How to Unlock Your SIM

What is a SIM PIN?

SIM PIN

Essentially, the SIM PIN — added as an additional feature in iOS 12 — is a security code that you can “lock” your SIM card with.

Whenever you restart your device or pop your SIM card out and place it in a new device, you’ll need to input the SIM PIN to access cellular functionality.

That can come in handy if your iPhone is stolen. It can prevent people from just popping out your SIM card, placing it into a device that they have on hand, and using your cellular line to make calls and texts.

If you’re interested, you can set up a SIM PIN by going to Settings > Cellular > SIM PIN.

Make sure you write this SIM PIN down somewhere safe that you can easily access. Sending an email to yourself or using Notes on iCloud are both good options.

Of course, if you already have one set up, you’ll need to input it before you set a new one. Which brings us to a problem: what if you’ve forgotten your SIM PIN?

RELATED:

  • How to Setup eSIM and Dual SIM on your Apple iPhone
  • How to use Dual SIM with your Apple Watch
  • Here are the New Features Coming to your iPhone with iOS 12.2

What if I Forgot My SIM PIN?

There are a couple of important things to note if you have forgotten your SIM PIN.

  • There’s really no way to reset a SIM PIN on your iPhone. In fact, there’s no way to reset a SIM PIN at all. Once you’ve chosen one, you’re stuck with it if you’ve forgotten it.
  • You only have three attempts to unlock your SIM card via PIN. If you input the wrong SIM PIN three times, your SIM card will be locked — cutting off access to voice and data.
  • Stop inputting anything if you can’t remember your SIM PIN after a few tries. If you happen to fail 10 further input attempts, your SIM Card will be locked permanently. There’s no way to undo this, so you’ll need to get a new SIM card from your carrier.

How to Unlock Your SIM

After you input three incorrect PIN codes, your iPhone will ask you to type in a PUK code. This is your ticket to unlocking your SIM PIN.

Note: The PUK code is not your PIN, so don’t try to input your PIN code to unlock it. (Again, too many attempts will render your SIM card useless.)

As far as getting a PUK code, typically an eight digit number. You’ll obtain it from your specific carrier.

Normally, you can contact your carrier by dialing 611 from your mobile device. But if you’re locked out of voice functionality on your SIM, you may need to try other methods of getting in contact with them.

Borrow someone else’s phone, contact your carrier through their website, or simply bring your device into a brick-and-mortar carrier store.

You’ll need to be the account holder for your carrier subscription, or at least have access to the account and SIM card itself.

Once you have your PUK code, you’ll input it in Settings > Cellular. Alternatively, it may appear when you try to access certain cellular capabilities. You should see an Enter PUK screen — enter your code here.

Like SIM PIN attempts, you only get 10 chances to properly input your PUK Code. So make sure that you type in that code really carefully.

When you type in the proper PUK Code, you should be able to regain access to your SIM card and its various functions. Again, if you want to use a SIM PIN in the future, be sure to write it down somewhere safe.

It’s also worth noting that carriers will need to verify a subscriber’s identity before they get a PUK code. So don’t worry about malicious entities contacting you carrier and trying to get that code for themselves.

We hope that you found this short article helpful. Please let us know if you have any questions or comments.

Related Posts:

  • pexels-mart-production-7163066
    Apple Card Review: Let's Compare It To The Competition
  • Photo of an iPhone being taken out of its box
    How To Use Dual SIM and eSIM on Your iPhone
  • YubiKey 5ci
    How to use a security key on your iPhone (and why…
  • pexels-cottonbro-5082579
    Getting Started With iOS 15: Everything Good And Bad
  • iPhone with No SIM Card Installed message
    Why does my iPhone say No SIM and what can I do to fix it?
  • pexels-designecologist-1779487
    The Best iPhone And Mac Shortcuts For Beginners
  • 2022 Mac Mini with Studio Display and Accessories
    Mac Tips For New Users In 2023
  • The home screen on an iPhone
    iPhone Not Connecting to Cellular Network: How to Fix
  • photo of an iphone with ios 16 downloaded on it
    iOS 16 Tips and Tricks: The Definitive List
mike - apple
Mike Peterson

Mike is a freelance journalist from San Diego, California.

While he primarily covers Apple and consumer technology, he has past experience writing about public safety, local government, and education for a variety of publications.

He’s worn quite a few hats in the journalism field, including writer, editor, and news designer.

Reader Interactions

Write a Comment Cancel reply

Show 10 Comments

  1. Donna Adams says

    April 27, 2022 at 2:17 AM

    I think this is really unprofessional to allow someone to get into your device and get all your personal information and screw your phone up in no time!!!! To be honest i should really get a paycheck for all the months i’v dealt with this messed up shit cause someone else was allowed to get into my device so now I’ve only been outta a phone for 5dyz cause of a freaking sim card that i locked and have no idea what the puk number is never heard of one but ya’ll seriously need to get up on ya privacy policy cause it sux so if i could id rate this bs a-000,cause it is not Kool for someone to be able to get into your device so easily just saying

    Reply
  2. Yen says

    April 22, 2022 at 10:59 PM

    I entered the wrong PUK for 10 times, and it’s locked now. I can’t even disable or change SIM PIN again. My status shows invalid SIM. Please tell me what should I do to unlock it.

    Reply
  3. Zak says

    January 13, 2022 at 9:21 AM

    Neeed to take off sim pin

    Reply
  4. Dorcus says

    August 13, 2021 at 1:09 PM

    My Sim card pin it’s blocked

    Reply
  5. Ilyaas says

    June 27, 2021 at 11:06 PM

    Sim is locked

    Reply
  6. Lupita Ortiz says

    March 30, 2021 at 7:00 AM

    If i leave the same Sim Card what numbers should i put

    Reply
  7. Justin Sanford says

    March 4, 2021 at 2:06 PM

    I’m unable to get my puk code, because it is in my exes name. They refuse to answer calls and generally are being unhelpful. Is there anyway to get my sim reactivated?

    Reply
  8. Adamu Fuseini Akubilla says

    January 27, 2021 at 1:31 AM

    My SIM card is blocked. I need a help

    Reply
  9. ryan says

    January 24, 2021 at 7:31 PM

    I can’t get in my phone because it says sim perm locked and I have waited for hour to unlock it but I cant and know I am locked out of my phone.

    Reply
  10. shirley e harris says

    March 6, 2020 at 12:51 PM

    My phones want show anything to open it up to put in PUK Code

    Reply

Primary Sidebar

Recent Posts

  • How to Fix Bad AirPods Sound Quality on PC
  • Use This Trick to Sync Apple Notes and Microsoft Word
  • How to Run Android Apps on a Mac
  • What Is the Best iOS Emulator for Windows PCs?
  • How to Remove Personal Info From Word Doc (Mac)
  • How to Share Files Between iPhone and Android

Connect with us

Footer

ABOUT

  • About Us
  • Contact us
  • Advertise
  • Privacy
  • Terms of Use

GUIDES

  • iOS & iPadOS
  • Apple ID
  • iCloud
  • App Store
  • iTunes
  • FaceTime
  • iMessage
  • Siri
  • Books and iBooks
  • Game Center
  • AirPlay

CONNECT

  • Facebook
  • Twitter
  • FeedBurner
  • YouTube

© Copyright 2010-2024 Guiding Tech Media · All Rights Reserved

This site and its content are in no way affiliated or endorsed by Apple, Inc. · Reproduction without explicit permission is prohibited