How does Xiao Ai know the password of the sim card?

Xiao Ai can't directly know the password of the SIM card. SIM card passwords are usually called PIN (Personal Identification Number) or PUK (Personal Unlock Code), and these passwords are set to protect the security of your SIM card and related mobile network services.

If you forget the PIN code of the SIM card, you can try the following methods to unlock the SIM card:

Incorrect PIN code entered three times: When you enter the incorrect PIN code three times in a row, the SIM card may be locked. At this point, you need to enter the PUK password to unlock it.

Unlock with PUK code: PUK code is an 8-digit number used to unlock the locked SIM card. You can get the PUK code in the following ways:

Look for it in your phone bill or the letter you received when you registered your SIM card.

Log on to your mobile operator's website and enter the account management page to find the PUK code.

Call the customer service hotline of the mobile operator and apply for the PUK code from the staff.

Reset PIN code: Once you successfully unlock the SIM card with PUK code, you can reset the new PIN code.

Please keep in mind that the above steps may vary with mobile operators and regions, and it is best to operate according to your specific situation and operator requirements. If in doubt, it is recommended to contact the customer service department of the mobile operator directly for help.