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      • A SIM card lock is a layer of security that prevents carrier services from being used unless the SIM is unlocked. This is different from a phone being carrier locked, which means a phone can only use SIM cards from a certain carrier.
      www.androidpolice.com/enable-sim-lock-android-phone-protection/
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  2. Feb 13, 2024 · This prevents someone from using your SIM on your phone or another phone without knowing your SIM unlock PIN. The reason for activating a SIM card lock is due to SIM...

  3. Jan 31, 2019 · 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.

  4. Apr 5, 2024 · Best answer: A SIM PIN code is a (usually) four-digit number used to unlock a physical SIM card. Your carrier supplies the code, and some carriers allow you to change it. You'll...

  5. Lock your SIM card with a PIN (personal identification number) so an identification code is required to make phone calls and use mobile data. To protect your SIM card or eSIM from others using it for phone calls or mobile data, you can use a SIM PIN.

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    • What's my SIM PIN? Your SIM PIN protects your SIM card from unauthorized use of your mobile service. If you've protected your SIM card with a PIN, your phone will ask for the SIM PIN each time you restart it or remove and reinsert the SIM.
    • My SIM is locked, so what do I do? The only thing that will unlock your SIM is the PUK key. Don't try to guess the PUK, as entering it incorrectly too many times will permanently lock the SIM—if this happens, you'll have to replace the SIM entirely.
    • What if I can't get my PUK or it doesn't work? Get a new SIM from your provider. The worst thing that can happen is that you lose access to your SIM card completely—as long as you have a removable SIM, your mobile provider should be able to issue you a new one.
  6. Jan 28, 2024 · Computing & Gadgets. Mobile Devices. What is a Locked SIM Card? A locked SIM card is a mobile device component that is restricted to a specific network carrier, preventing it from being used with other carriers' networks. When a SIM card is locked, it means that it can only be used with the network provider that originally issued it.

  7. Mar 28, 2024 · If you locked your SIM card, you will be prompted to enter the password when you insert that SIM into a new phone. If you know the password, enter it to unlock your SIM. If not, you can unlock the SIM with a PUK (pin unlock key) that comes from your mobile provider.

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