I accidentally pressed the sim card and it was locked. I can't make a phone call now, and I can't accept text messages. I don't know where the old big name went.

If your mobile phone card is locked, you can unlock it according to the following traffic:

The password of PIN code is initially set to 1234. If the PIN code is entered incorrectly for three consecutive times, the card will be locked. At this time, you need to enter the PUK password to unlock it. However, after the PUK code is input incorrectly for 10 times in a row, the SIM card will not be recovered. You can check your PUK code information in the telephone room or Internet room:

Handhall: my-security center-my PUK code;

Internet cafe: log on to the home page of online business hall-query-my basic information-number information-PUK code query.