I believe many friends who use SIM cards have encountered this situation, that is, the mobile phone card is locked. What should we do at this time? Entering the password randomly will definitely not work, because once you enter the password incorrectly ten times, the SIM will become unusable. Below, the editor will tell you how to unlock it.

Two methods:

The first one: If you save it well, when the PUK code of your phone is locked, you can find out the phone card you used when you bought the SIM card. In addition to the phone card number and password, there is also a PUK code on the phone card. Scratch the barcode and enter the barcode number on the locked phone to unlock it.

　　
mobile phone card

It doesn’t matter if you can’t find the card. The solution is: borrow a friend’s mobile phone, dial China Mobile’s 10086 number, and then press 1 (Mandarin) - 3 (Business Inquiry and Processing) - 1 (Number Attribution) (Place and PUK code query)-2 (PUK query), then enter your mobile phone number and press the # key. Then the system will prompt you to enter the password of the mobile phone card. After the system confirms that the password is correct, it will tell you the PUK code. Write it down. Then enter your mobile phone to unlock it.

Note: The PUK code is the last level of protection for the SIM card. Once it is locked, do not enter it randomly. If entered incorrectly more than ten times, the SIM card will be completely useless.

Second type: Log in to the mobile website and enter your mobile phone number and service password. Then "Online Business Hall" appears, select "Personal Information Management" and "PUK Code Query" appears in the drop-down menu and an 8-digit number appears, which is OK.