After doing 3. 1.2 on behalf of iphone, you will receive a text message 10 months ago every time you turn it on.

Try another mobile phone. If not, use my method again.

See when you have been receiving messages, then reset the date of the mobile phone back to the same day, restart it, do all the messages according to this operation, and jump back to the current time after the last restart.

I don't know if it's ok. I think the default of mobile phone is that your information has not been received, so I remind you again and again that this method is equivalent to letting the system return to the original time to receive information, which should be effective.

In addition, delete all information records and try again.

Another one, click General, Restore, and restore the phone settings.