There are many iPhone users and for some reasons you would lost your iPhone text messages or contacts unexpectedly.
But if you have a itunes backup file, we can still recover them by extracting from itunes backup file.
And I found Coolmuster Data Recovery for iPhone iPad iPod is really helpful. And it's very easy to use, we just need 2 simple steps to finish the work.
If you need, we can also use it to recover other kinds of files in the same way.
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How to Restore iPhone Contacts from iTunes backup