Merely put, a smartphone’s lock display doesn’t lock the SIM card inside it and even organising app lock or encrypting the whole smartphone or utilizing the boot-time password in your smartphone doesn’t shield the SIM card or its information.
Properly, then how you can shield the SIM card and the info saved on it. The reply is SIM PIN, which can be the one approach that provides a further layer of safety to the SIM. As soon as the SIM PIN lock is enabled, every time you will restart the smartphone or swap the SIM to another smartphone, it’s going to ask you to enter your SIM PIN and with out the authentication, SIM card is not going to be accessible in any respect.
Do be aware that in case you neglect your SIM PIN and you will want to name buyer care. As it’s going to ask for PUK (PIN Unlock Key) code to unlock the SIM.
Go to Settings and faucet on Safety
Now, faucet on Different safety settings or Extra safety settings
Faucet on Arrange SIM card lock
Enter default PIN of your SIM card
The default SIM PIN differs from operator to operator. For instance, Airtel customers can enter 1234 and the default SIM PIN for Vodafone customers is 0000.
To vary the default SIM PIN, faucet on Change SIM card PIN.
Enter the present PIN to confirm after which enter the brand new PIN of your alternative and make sure it once more to avoid wasting the brand new PIN.