Code to Lock Your MTN Mobile Data Against Unauthorized Use

There is a set of instructions or steps that users can follow to secure their MTN (a mobile telecommunications company) mobile data against unauthorized use. In this article, we shall look into the process of activating a SIM card lock as a precautionary measure to prevent SIM fraud and ensure the security of the user’s mobile data on the MTN network.

“Which code can I use to lock my MTN data?” If you’re seeking a way to secure your MTN mobile network data to prevent unauthorized use, this guide is for you. It’s essential to note that there isn’t currently a specific code to lock your MTN data (or browsing data). However, you can activate SIM card lock as a precaution against SIM fraud.

Code to Lock and Unlock your MTN Mobile Data

If you are curious about how to safeguard your MTN SIM card from potential hacking, follow the steps outlined below:

For Android Users:

1. Navigate and click on the “Settings” icon on your phone.

2. Scroll down to select “Security.”

3. Click on “SIM card lock.”

4. Turn on the “Lock SIM card.”

5. Insert the MTN default SIM Card PIN, which is 00000.

6. Tap “Ok” to change the default pin to your preferred unique 4-digit pin.

7. Confirm your 4-digit unique pin by entering it for the second time.

8. Reboot your phone to check if the SIM PIN is activated.

For iOS Users:

Users of this device will receive a prompt to insert their SIM PIN each time they remove and insert their SIM card or power ON their device. The above process will only be automated if you have never changed your SIM PIN.

If you input a wrong PIN multiple times and your SIM is blocked, and it requests a PUK, input the correct PUK to unblock it. If you can’t find your PUK, please contact MTN customer care by dialing 180 or visit any MTN store closest to you.


There isn’t a universal code provided by MTN that allows users to directly lock their mobile data. However, you can secure your MTN SIM card by setting a SIM card lock, which adds an extra layer of protection against unauthorized use. This involves using a Personal Identification Number (PIN) for your SIM card.

For Android users, you can set a SIM card lock through the device settings, as mentioned in the earlier provided guide. For iOS users, the SIM PIN is often prompted automatically when you insert your SIM card or power on the device.

Source: Nyscinfo

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