What if the phone is stopped and said to be illegal?

It is a safety measure for the public security bureau to freeze personal mobile phone numbers and cause downtime. In this case, the mobile phone number holder can call customer service or go to the operator's business hall to determine whether it is in this shutdown state. Its shutdown status shows that you can only dial the operator's customer service phone, and other numbers cannot be dialed or answered. Short messages, including those of operators, cannot be sent or received, and the network is disconnected, but the signal is full.

If I haven't done anything illegal, I will usually unlock it automatically, so don't worry.

Legal basis: Article 102 of the Criminal Procedure Law of People's Republic of China (PRC) stipulates that the people's court may, when necessary, take preservation measures such as sealing up, distraining and freezing the defendant's property. The plaintiff or the people's procuratorate in an incidental civil action may apply to the people's court for preservation measures. The people's court shall adopt preservation measures and apply the relevant provisions of the Civil Procedure Law.