Changing the PIN code of the SIM card that you have in your Xiaomi is a fairly simple security setting . Although it is no longer so cumbersome, the option is somewhat hidden among the MIUI customization layer options . For this reason, next, we are going to show you how you can make this change from the settings quickly and easily.

How SIM card lock works

The SIM card lock is a security mechanism that allows you to lock the device every time it is turned off and on. In this way you manage to protect your privacy and keep your data safe. The PIN used to unlock the device is made up of the last four digits of the PUK code , the 8-digit number that is recorded on the SIM card or on its packaging.

If you want to change the PIN, the MIUI customization layer offers you a quick access to do it. To do this, the first thing you should do is have the PIN of the SIM card at hand . Likewise, it is important that the SIM is inside your Xiaomi, otherwise the route will not be displayed correctly. Also, the lock option must be activated .

Finally, to change the PIN code of the SIM card of your Xiaomi, Redmi or POCO, you just need to follow these instructions:

• Go to Settings > Passwords & Security > Privacy .
• In the 'SIM lock' section, click on the name of your operator.
• Tap on ' Change SIM card PIN '.

Follow the instructions and enter another four digits to change the SIM card PIN of your Xiaomi. In this way, the procedure will be complete. Now, every time you turn your phone off and on again, you will be asked to enter the newly created PIN code.