How can the black messages on Apple's mobile phone return to normal?

Open the settings application in the Apple mobile phone interface and enter.

Then find the phone or information option on the settings page to open.

Then drop down the page in the message and enter the blacklist.

Finally, cancel the phone number blocked by the blacklist number, so that your Apple phone can receive the hacked phone number short message.

Go back to the home page and complete all the settings.