I don’t know how many people encountered with such a problem, however, what I can make sure is that there is a method to extract data from your iTunes backup and only restore the lost or deleted data to your iPhone after update to iOS 10/9.
Actually, as iOS 10 came into the market, many iOS 9 or iOS 8 users can’t wait to upgrade their iOS device for more convenience and new functions. It’s absolutely right that upgrading OS is a good choice, however, there’s also risk for you to take that the process may fail on the half way and as a result, your data will get lost. In order to restore only contacts, messages, photos and notes from iTunes backup to iPhone, you need a third party software named iOS 10/9 Data Recovery to help you.
iOS 10 Data Recovery is a well-known data recovery program for iPhone, iPad and iPod, which enables you to restore your deleted or lost data by extracting data directly out of iDevices, iTunes or iCloud backups. The app is 100% safe with no personal info leaking. What's more, you needn't worry about complex operations on your hanset or on computer. Just with one click, you can selectively choose your lost data for recovery from your device.
You can get it the trial version for free here!
Three Ways to Restore Disappeared Data from iPhone iPad iPod after iOS 10/9 Upgrade
Part 1. Direct Recover Disappeared Data on iPhone iPad iPod
Step 1 Connect iDevice and Scan
With the saind program running on yor PC, connect your iPhone iPad or iPod with USB cable. When you see the homepage as below, click on Start Scan.
You may check the box infront of Contacts from the left list. In fact, you can check any box you like if you need to get them back.
Step 2 Get Back Data from iOS Device
Your wanted contents will be listed in categories after the above steps. You can overview the scanning result and click Recover to extact them.
If you can not find your data by using the method that shows in Part 1, you can also try using the below two ways to extract lost iPhone data from backups.
Part 2. Extract Disappeared Data from iTunes Backup
Step 1 Scan iTunes Backup
On the hompage, click on "Recover from iTunes Backup File". You can choose the backup file according to the backup date. Then click "Star Scan".
Step 2 Overview your Phone Data
It will not be long before the scan process finishes. After that, select the content you want and click "Recover" button to get back your contacts, SMS or any others.
Part 3. Extract Disappeared Data from iCloud Backup
Step 1 Sign in to iCloud
Start iOS Data Recovery Program and choose "Recover from iCloud Backup File" mode. You need to sign in your iCloud.
Step 2 Download iCloud backup
Download the imformation you need, and move on to the next step.
Step 3 Get Whatever Wanted Lost Data Back
This step is more of the same as recovering data from iTunes Backup File. That is, choose contents you like, and finally, click "Recover".