How to restore an iPhone with a previous backup?

iTunes allows us to back up and restore iPhone and transfer data between devices. Once we have data loss, we have to use the iTunes backup to restore. While sometimes, you may found the iTunes tell us that your backup was corrupt. How can you recover data from iTunes backup in this situation?
 “iTunes could not restore the iPhone and name because the backup was corrupt or not compatible with the iPhone that is being restored”.
Why you get this message: iTunes backup was corrupt or not compatible?
First, your former backup is unusable. After you back up your iPhone, you should check the backup, or if you did not successfully back up the iPhone, you will find it corrupt when you are trying to restore from it.
Second, if you restore your iTunes backup with incompatible devices,you will receive this message. Such as you restore your iPhone data to iPad with different iOS device, it is impossible.
How to fix this problem and restore backup again?
To fix this issues, you should delete this existing corrupted or incompatible backup from iTunes. Then you need to create a new backup and restore to your device.
Run iTunes on your computer.
Click Edit>Preferences>Devices, select the device’s backup you need to delete, and click Delete Backup button.
In addition, you can delete your iTunes backup by manual in system drive. Go to Drive C and go to Username>AppData>Roaming>Apple Computer>MobileSync>Backup.
After you delete the iTunes backup, you need to create a new backup with iTunes and then restore from it.
With the iTunes backup, you can restore your iPhone from iTunes at any time. If you do not want to restore the entire backup to your iPhone, you can choose to extract data from iTunes backup and then transfer them to your iPhone.
To restore data from iTunes backup, your backup should be available and usable. You’d better do not casually delete the iTunes backup from hard drive even if you need to free up space. You can move them to an external hard drive. To extract data, you need to use a data recovery software for iOS devices.
Download and Run H Data iPhone recovery softwareon your computer to extract data.
Click “View and restore from iTunes backup”, the software will list all your recently iTunes backups with time. You can select the device and backup to scan.
Click Scan button on the software. The software will automatically scan your chosen backup.
After scan, all your data in backup list here. You can click by contents to preview them decide what you need to export.
Tick the data you need to export and click “Export Selected Records”.
Check the recovered data on your computer, and then transfer them to your iPhone via iTunes.