After the backup is resumed, almost every short message in the mobile phone will appear repeatedly. It used to be more than 7 thousand, but now it has turned over! How to delete duplicate messages?

That's why you didn't choose a good backup.

There will be a lot of information.

In fact, you can choose a software for backup. In this case,

You can recover the data in it at any time.

Then download an application treasure to the computer and connect the mobile phone through the computer.

The method of backing up data to the computer.

So you can recover data at any time.

Then don't worry about it.