Recover deleted contacts from iOS device

Today data loss is never a devastating disaster for us. As we have so many backup method, and professional data recovery software. Data loss has been greatly reduced. However, in case there has data loss, we have to mention about data recovery. There are too many causes for data loss on iPhone. The contacts are very important and private information on your iPhone. If you lost the contacts which you have established for years, it could be a great trouble for you.
The common causes for your contacts on iPhone
Accidental deletion. This is the most common causes for data loss. Suppose that you have backed up your iPhone to iCloud or iTunes, you can restore your data from backup easily.
iPhone become broken or get lost.
iPhone issues after jail-breaking.
Factory reset iPhone to erase all the data and settings from iPhone.
Failed updating of iOS

No matter why you lost your contacts, you can recover and restore your contacts from your iTunes or iCloud backup. Every time you connect your iPhone with computer and sync with iTunes, it will automatically create a backup. But you should not restore the entire backup from iTunes to your iPhone. If you do this, it could cause more data loss. The iTunes backup you made do not include your recently added data on iPhone.
So how to recover your contacts from iTunes backup but at the same time will not overwritten your existing data on your iPhone? To solve this problem, you have to use an iPhone recovery software on your computer and extract data from iTunes backup.
How to extract data from iTunes backup with data recovery software
The data recovery software can scan and analyze your data in iTunes backup, and then restore them on the software interface. All the existing data displayed here. And as long as your deleted data have not been overwritten, the software can restore them. The deleted data are show in red.
Download and run H Data iPhone recovery softwareon your computer.
Open iTunes and connect it with your iPhone.
Click “View and Restore from iTunes backup” on the software.
Choose a backup to scan. The software will scan your backup data. And it only needs several minutes for scanning.
After scan, you are able to see all the data in your backup.
Click the Contacts on the left side, you are able to preview all the phone numbers and email address of your contacts.
Tick the contacts that you want to restore.
Click “Export Selected Records” to export your contacts to computer. The contacts recovered are in a html page. You can choose to copy these information and add them to your iPhone.