The contents of the iPhone could not be read. Click Restore to restore this iPhone to factory settings.

When you try to connect the iPhone to your Mac or windows pc you might be seeing this kind of problem.

Solution:

1. Download iFunBox a file management app for iPhones from here.https://www.i-funbox.com/en/index.html

2. Connect your iPhone to mac/win pc and open Ifunbx

3. 

4. Navigate to Raw File System

   

5. Then 'iTunes_Controls.

   

6. Then 'iTunes'

   

7. Delete the 'iTunes_CDB' File

   

8. After deleting the file disconnect the iPhone from your mac/pc, wait for 2 to 2 mins, and re-connect the iPhone again.

   You are good to go now.