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Recover iPhone Lost Data after Upgrading to iOS 8
Recently,many people update their old iPhone 5s, iPhone 5c, iPhone 5, iPhone 4s to iOS 8,but  because the iOS 8 upgrade failure and then caused data loss on iPhone,after success upgrading iPhone to iOS 8 and cause lost iPhone data,sometimes you may lost contacts, text messages, photos, videos, call logs, notes,ect on iPhone due to iOS update,because every iOS upgrading may erase all data on your iPhone,so before upgrading your iPhone to iOS 8,please get into the habit of transfer important files from iPhone to computer and learning how to recover lost data from iPhone after upgrading to iOS 8.This use guide main teach you a easy way to restore iPhone data after update iPhone to iOS 8.

iPhone 6 data recovery

This iPhone data recovery software can help you recover lost iPhone data after upgrading to iOS 8,it provides you 3 simple ways to recover iPhone data: directly scan iPhone to recover data; restore iPhone lost data from iCloud backup file, and recover lost data from iTunes backup.The iPhone/iPad/iPod Data Recovery supports restore data up to 12 files like contacts, SMS, photos, videos, notes, call histories & more.What’s more,you can not only use this powerful iOS Data Recovery to recover iPhone lost data after iOS 8, iOS 7 upgrade,but also get data back from dead after Jailbreak, factory settings restore, deleting iPhone files but accidentally, etc.

Now, download the right version for your computer below,then restore iPhone lost data after upgrading to iOS 8, iOS 7.

Mac iPhone SMS Recovery    iPhone SMS Recovery
Tips: This ios data recovery provides you 3 ways to restore iPhone lost data after ios upgrade:recover data from iPhone directly; restore data from iTunes/iCloud backup.

    Part 1: Recover Lost Data from iPhone after iOS 8 upgrade

    Part 2: Resotre iPhone Data from iTunes backup after iOS 8 Upgrade

How to Recover lost Data from iPhone after iOS 8 Upgrade

Let's show you 2 recovery modes to restore iPhone lost data after ios update:

Part 1: Directly Recover Lost Data from iPhone after iOS 8 upgrade

After downloading and installing iOS Data Recovery program on your computer, launch it.

I. For iPhone 5S/5C/5/4S users
There is only a "Start Scan" button on the main window. After connecting your iPhone, click the "Start Scan" button to scan your iPhone, then you'll see this scanning window.

recover iphone data after ios 8 upgrade

II. For iPhone 4/3GS users
After connecting your iPhone to the computer, you can choose "Advanced Mode" at the corner of the window to get a deeper scan. Then please get into the device's scanning mode before scanning. Now, do as the following instructions:
1. Hold your device and click the "Start" button.
2. Pressing the "Power" and "Home" buttons simultaneously for 10 seconds.
3. After 10 seconds, release the "Power" button, but keep holding "Home" for another 15 seconds.
When you're told that you've entered the scanning mode, release the "Home" button, and the program starts to scan your iPhone as follows:

restore iphone data after ios 8 upgrade

recover data from iphone ios 8

Step 2. Preview and select the recover data

After the scan, all your data in your iPhone are found and listed in organized categories, such as photos, contacts, messages, call history, calendar, notes, reminders, voice memos and safari bookmark. You can preview full contents of all of them one by one.

recover data after upgrade to ios 8

If you want to restore all of them, please mark them all and click "Recover" button to save them on your computer in one click. You can selectively mark and recover those you want by pressing "Recover" button.
Note: Data found here includes lost data and those still on your iPhone. If you only want to recover your deleted data, just refine the scan result by using the slide button at bottom to only display deleted items. Choose the data you want and click "Recover" button to save them.

Mac iPhone SMS Recovery    iPhone SMS Recovery

Part 2: Recover iPhone Data from iTunes backup after iOS 8 Upgrade

Step 1. Choose the recovery mode and extract backup file

After launching the iPhone Data Recovery program on your computer, you will find three recovery mode options on the top of the window that you can choose. Now, let’s try to "Recover from iTunes backup File" and follow the detailed steps.

restore data after upgrade to ios 8

All data of iTunes backup files will be found and displayed automatically, choose the one of your device and click "Start Scan" to go on.

Step 2. Recover lost data on your iOS 8 device

When the scan is over, all the files of your backup will be presented and listed to you. Before recover your data, you can preview them one by one. Mark the data you want and save them on your computer by clicking "Recover" button.

how to restore iphone lost data after upgrade to ios 8

Note: Then data still exist in your iPhone and those already deleted are both found and displayed in categories here. If you only want to preview the lost ones, you can slide to the top of the window to click the button to only display the one deleted.

Mac iPhone SMS Recovery    iPhone SMS Recovery
If you lost your data due to upgrade iOS 8, iOS 7 on your iPhone, iPad and iPod, you had better recover them by extracting the iTunes backup. According to this situation, you can not find all your lost data by scan iPhone directly, because they may have already been overwritten by the updated system files. To avoid losing data on iPhone again, please backup data from iPhone, iPad, iPod to computer before iOS upgrading. To transfer data from ios devices to computer,here I recommend you this iPhone iPad iPod Manager tool,which allows you transfer any data between ios devices and computer.
Learn more: How to recover lost data from iPhone 6