Using one account on multiple iPhones, I accidentally synchronized my address book. Someone else’s phone has the number on my phone. How do I delete it?

Solution:

1. First of all, two people share the same ID account, which leads to confusion in the address book and there is no way to restore it;

2. For this kind of situation In this case, it is best not to use an ID account, otherwise you will not be able to independently back up important data files, and once lost, they cannot be retrieved;

3. Even if you use an account, Don't turn on all iCloud synchronization options for a file, otherwise the data information will be synchronized with each other, resulting in confusion of mobile phone information;

4. Click Settings - iCloud, and then go to iCloud and All options and functions that do not need to be synchronized with each other are turned off;

5. The function of automatically downloading software from each other must also be turned off. Click Settings - iTunes store and AppStore, and turn off the function of automatically downloading software. ;

6. Furthermore, go to Settings - Messages - iMessage, and it is best to turn off the message synchronization function, so that text messages will not be synchronized with each other.