How to Activate SIM Card Lock to Prevent SIM Fraud

Wondering how you can protect your SIM card from being hacked by scammers?

Follow these simple steps to lock your SIM:


On your Android device homepage

  1. Navigate and click on Settings
  2. Scroll to select Security
  3. Click on set up SIM Card LOCK.
  4. Click on the LOCK SIM Card.
  5. Insert MTN default SIM Card PIN, 00000
  6. Tap on ” CHANGE SIM Card PIN” to change the default pin to your unique 4-digit pin
  7. Confirm your 4-digits unique pin
  8. Power off and on to check if SIM PIN is activated

On your iOS device homepage

  1. Navigate and click on Settings
  2. Go to Mobile Data or Cellular
  3. Click on SIM PIN
  4. Activate SIM PIN
  5. Insert MTN default SIM Card PIN, 00000
  6. Immediately, Change your SIM PIN from the default to a unique 4-digit SIM PIN known to you ONLY.
  7. Confirm your 4-digits unique pin
  8. Power off and on to check if SIM PIN is activated

Note, you will always receive a prompt to insert your SIM PIN each time you remove and insert your SIM into a device or you power on your device, and the above process will only apply if you have never changed your SIM PIN.” If you mistakenly input a wrong PIN and your SIM is requesting for PUK, input the right PUK if you have it.

Can’t find your PUK? Visit any MTN Store closest to you, call 180 or reach us on our customer support channels on social media channels (Facebook: @MTNLoaded, Twitter: @MTN180)  to avoid SIM damage.