Lock your SIM card with a PIN (personal identification number) to require an identification code for phone calls and cellular-data usage. Show To protect your SIM card from others using it for phone calls or cellular data, you can use a SIM PIN. Then, every time you restart your device or remove the SIM card, your SIM card will automatically lock and you'll see "Locked SIM" in the status bar. Don't try to guess your SIM PIN. The wrong guess can permanently lock your SIM card, which means that you would need a new SIM card. Turn your SIM PIN on or off
If you forgot or don't know your SIM PINNever try to guess a SIM PIN or PUK code.* The wrong guess can permanently lock your SIM card, and then you would need a new SIM card. If your device asks for a PIN or code that you don't know, here's what to do:
*If you enter the wrong SIM PIN too many times, your wireless carrier might be able to give you a Personal Unlocking Key (PUK). Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Contact the vendor for additional information. Published Date: September 23, 2021 “What code to lock my mtn data?” Are you looking for how to lock your MTN mobile network data in order to prevent unauthorized use? If ‘yes’, then this piece was created with you in mind. Kindly note that there is not yet a special code you can lock your MTN data (or browsing data) except to activate SIM card lock which will help you to prevent SIM fraud. Wondering how you can lock your MTN SIM card from being hacked by scammers? Follow the guideline below: For Android Users;
For IOS Users Users of this device always receive a prompt to insert their SIM PIN each time they remove and insert their SIM card into their device or they can power ON their device, and the above process will only automated if you have never changed your SIM PIN. If you input a wrong PIN multiple times and you SIM block, and requesting for PUK, input the right PUK to unblock it. But if you can find your PUK, kindly contact the MTN customer care service by dialing 180, or you can visit any MTN store closest to you. Source: Nyscinfo
on June 26, 2014, 3:00 AM PDT Jack Wallen walks you through the process of adding a SIM PIN to help prevent anyone from accessing precious account information or using your data plan. You can protect the data on your phone to the point where no one can access it without knowing the various codes or have the exact biometric pattern of your fingerprint. But what about your phone number or your voice/data plans? Even with the best protection on your smartphone directory structure, someone could simply remove your SIM card — which holds your phone number, security data, billing information, and other bits of data — and place it in their device.
So, how can you protect your precious data? There’s only one way: a SIM card PIN. Now that we’ve established the why, before we get into the how of this, I need to lay down a warning or two. A SIM card typically comes with a default PIN, but it’s not used for locking purposes. The SIM card also has an associated PIN Unlock Key (PUK). If you attempt to do a SIM PIN Lock, and you fail to guess the original PIN, the SIM will be locked with the PUK. If you run into this situation, you’ll most likely have to log into your mobile account to retrieve this information. Here are the steps for retrieving a PUK on an AT&T device:
And here are the steps for retrieving a PUK on a Verizon device:
If you cannot find your PUK, you’ll most likely have to call your carrier. If your carrier doesn’t offer up the default PIN, most often it’s either 0000 or 1111. But remember, you get three attempts. If the three attempts fail, you must enter the PUK. Without that PUK, your device will not be able to access the SIM card. Without the SIM card, you cannot use either your voice or data plan with the device. Setting up the SIM lockNow, we get to the fun part. Here are the steps for setting up a SIM PIN lock. I’ll demonstrate on a Verizon-branded Samsung Galaxy S4. Follow these steps:
Figure A Once you have the lock enabled, you’ll want to change the SIM PIN (otherwise people could guess the default). Here are the steps to change the PIN:
That’s it. When you restart your device, you’ll be prompted to enter the SIM PIN (Figure B) before your phone can access the SIM. Figure B At this point, you’ve secured the data on your SIM. You could remove that SIM and place it in another phone, but without that PIN, the SIM is useless. Is this level of security necessary for you — or is the standard lock screen enough? How secure is your device? Let us know in the discussion thread below.
How do I lock my SIM card?To protect your SIM card from others using it for phone calls or cellular data, you can use a SIM PIN. Then, every time you restart your device or remove the SIM card, your SIM card will automatically lock and you'll see "Locked SIM" in the status bar.
How do I lock my SIM card MTN?How to Activate SIM Card Lock to Prevent SIM Fraud. Navigate and click on Settings.. Scroll to select Security.. Click on set up SIM Card LOCK.. Click on the LOCK SIM Card.. Insert MTN default SIM Card PIN, 00000.. Tap on ” CHANGE SIM Card PIN” to change the default pin to your unique 4-digit pin.. Confirm your 4-digits unique pin.. How do I lock my MTN SIM card on Android?Setting Up SIM Card Lock in Android Phones. Step 1: Go to "Settings". ... . Step 2: Tap "Lock Screen and Security".. Step 3: Tap "Other security settings".. Step 4: Tap "SIM card lock".. Step 5: Tap "Lock SIM card, " and you will be asked to enter the PIN via a pop-up.. What is MTN SIM lock PIN?MTN Default SIM PIN is 00000. The PIN can be used to lock the SIM. It is also required to change the PIN from the default to your preferred PIN. In changing the PIN it is preferable to use any 4 digit PIN that will not be forgotten.
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