The mobile phone card is locked. How can I read the information?

If you are locked, you can't read text messages. Find the password card of the mobile phone card you bought at the beginning, that is, a card the size of a bank card. Your mobile phone card came down from there with a password on it. If you lose that card, don't unlock it casually. There are only ten unlocking opportunities for each SIM card. If you enter the password ten times in total, your SIM card will be completely scrapped. Take your ID card to a nearby service point and let a professional unlock it for you.