Need tools: iPhone 7 mobile phone

Specific operation steps:

After 1.iPhone 7 is unlocked, open the settings under the main screen page.

2. After entering the detailed options list of settings, select General Settings to enter.

3. Under the general menu bar, find the recovery settings at the bottom to continue the next step.

4. Select Restore Network Settings in the specific options of Restore. (Note: Restoring the network settings only initializes the mobile phone network and does not affect any data of other mobile phones)

5. After the system finishes restoring the network settings, press and hold the power button on the right side of iPhone 7 to restart the phone.

6. After the network settings are restored and the iPhone 7 phone is restarted to take effect, "Thank you for using (operator name)" will be displayed when the phone is turned on.

7. Click Accept to enter the main screen page of the mobile phone, and the name of the operator will be displayed in the upper left corner of the iPhone7 mobile phone.