iTunes Backup was Corrupt or Not Compatible

How to Fix iTunes Could Not Backup/Restore the iPhone Because the iPhone Disconnected Issues

[Last Updated on June. 21, 2017]

It is suggested for Apple users to backup iPhone iPad iPod manually using iTunes on Windows PC or Mac in case any data loss. Backing up iDevices and restoring iDevices from an iTunes backup should be easy, however, sometimes backup and restore process stops or fails due to unexpected errors.

Recently, many iOS users keep emailing us complaining that while backing up iDevices before iOS 11 update, a message pops out saying "iTunes could not backup the iPhone because the iPhone disconnected". Actually, many iOS users might also encounter problems like " iTunes invalid response", "iTunes could not restore the iPhone because the iPhone disconnected".

Here in this post, we will focus on fixing iPhone disconnects errors during backing up and restoring. No matter which error you are stuck in, just follow us and you can easily solve your problem.

Situation 1. iTunes Could Not Backup the iPhone Because the iPhone DisconnectedSituation 2. iTunes Could Not Restore the iPhone Because the iPhone Disconnected

Situation 1. iTunes Could Not Backup the iPhone Because the iPhone Disconnected

Before getting started to fix iTunes could not backup the iPhone because the iPhone disconnected, please make sure:

1. You have connected your iPhone to your computer.

2. You are using the original Apple USB cable.

3. You did not jailbreak your iPhone.

iTunes Could Not Backup iPhone/iPad/iPod - iTunes Backup Was Corrupt or Not Compatible

iTunes Could Not Backup iPhone/iPad/iPod - iTunes Backup Was Corrupt or Not Compatible

Solution 1. Fix iPhone Disconnected Error During Backup by Trying Another USB Cable

For majority issues of "iTunes could not backup the iPhone because the iPhone disconnected", the USB cable is to be blamed. Try another USB cable and maybe you can then backup iDevices freely.

Solution 2. Fix iPhone Disconnected Error During Backup by Resetting Network

Go to Settings > General > Reset > Reset Network Settings. All network settings might be erased. Be free to reset network settings for it does no harm to your existing data on iDevice. Many people have fixed iTunes could not backup the iPhone because the iPhone disconnected issues by resetting network.

Solution 3. Fix iPhone Disconnected Error During Backup by Booting Mac Computer

If you are using Mac computer, this solution may work to solve iPhone disconnected error during backup.

Restart Mac and then press and hold the Shift key immediately, then an white Apple logo will appear, release the shift key when you see the login window.

Solution 4. Fix iPhone Disconnected Error During Backup by Deleting the Lockdown Folder

The lockdown folder is a protected folder on your computer containing temp data. When it goes corrupt, you need to delete the lockdown folder from computer to be able to backup devices again. We have talked about deleting the lockdown folder from computer, please refer to How to Delete Lockdown Folder to know more.

Solution 5. Fix iPhone Disconnected Error During Backup by Deleting iTunes Backup

Go to iTunes > Preferences > Devices, all iTunes backups will be displayed. Delete backups would eliminate errors caused by reading or trying to update it. Give this solution a try and see if you can fix iPhone disconnects problems.

Solution 6. Fix iPhone Disconnected Error During Backup by Renaming the Old Backup Folder

Matching your device identifier with the backup folder name could be helpful to solve issues of iTunes could not backup iPhone because the iPhone is disconnected. For more detailed steps to rename the old backup folder, please refer to: How to Rename the Old Backup Folder >

Solution 7. Fix iPhone Disconnected Error During Backup by Setting iDevice

While backing up iDevice with iTunes, it is recommend to turn on Airplane mode and Low Power Mode, then turn off Background App Refresh. This could avoid disconnect errors caused by iPhone.

Solution 8. Fix iPhone Disconnected Error During Backup by Using an iTunes Alternative

If you tried all methods above but none of them are working, it is high time to choose one iTunes alternative tool like AnyTrans for iOS to backup iOS device data.

Developed by iMobie team, AnyTrans is an excellent data transfer tool. With AnyTrans for iOS, you can create new iTunes backups, selectively backup iPhone data to computer or backup iPhone data to computer via Wi-Fi. Let's see how to backup iPhone data with AnyTrans for iOS.

iMobie is an Apple certificated developer and AnyTrans is now Norton and McAfee secured. You have our guarantee that it does no harm to your devices and incidents like data loss or information leakage would never occur. Please be free to use AnyTrans.

1 > Create a New iTunes Backup with AnyTrans for iOS

This mode will even work when iTunes doesn't allow you to backup iOS devices. Besides, it is easy to create a new iTunes backup with AnyTrans for iOS. Now, free download it and follow us to create a new iTunes backup.

Plug in your iPhone, no matter older iPhone 5/6/7 or the latest iPhone 8/X, click the iTunes Backup tab. AnyTrans for iOS would display you all previous iTunes backups. Tap button and you can soon create a new iTunes backup.

Fix iTunes Could Not Backup iPhone Because the iPhone Disconnected by Creating a New Backup with AnyTrans

Fix iTunes Could Not Backup iPhone Because the iPhone Disconnected by Creating a New Backup with AnyTrans

2 > Selectively Backup iOS Data to Computer with AnyTrans for iOS

Creating a new iTunes backup with AnyTrans for iOS is a nice solution to problems of iTunes could not backup iPhone because the iPhone disconnected. However, as is known to all, while making iTunes backups, you can't selectively backup data. AnyTrans for iOS overcomes this shortcoming. It allows you to selectively backup data from iPhone to computer as printable and viewable format, that is to say if you use AnyTrans for iOS to backup iPhone data, you can have access to the data backed up in computer whenever you need.

Step 1. Free download AnyTrans for iOS on your computer and then launch it on your computer, plug in your iPhone.

Step 2. Scroll down to the Category management page, select the data type you want to backup. (Take Photos as an example)

Fix Issues of iPhone Disconnects Error During Backup by Selectively Backing up iOS Data - Step 2

Fix Issues of iPhone Disconnects Error During Backup by Selectively Backing up iOS Data - Step 2

Step 3. AnyTrans for iOS would display you all photos on iDevice. Select the photos you want to backup, click the To Computer button and selected photos will soon be transferred to computer.

Fix Issues of iPhone Disconnects Error During Backup by Selectively Backing up iOS Data - Step 3

Fix Issues of iPhone Disconnects Error During Backup by Selectively Backing up iOS Data - Step 3

3 > Air Backup

Many people believe that while making iTunes backups, USB cable is necessary. Gone are days when you have to use USB cables to backup iOS data with the launch of Air Backup function. Here is how you can backup iOS data without USB cable.

Step 1. Get AnyTrans for iOS for free and the launch it. Connect your device to computer via an USB cable if it is your first time to use Air Backup feature. Select Air Backup Mode.

Fix iPhone Disconnects Errors During Backup by Using AnyTrans - Step 1

Fix iPhone Disconnects Errors During Backup by Using AnyTrans - Step 1

Step 2. Connect your iDevice and computer Under the same Wi-Fi. Once your iDevice is recognized, AnyTrans for iOS would automatically backup data on your iDevice. After backup is finished, you can check your backups by clicking More Backups.

Fix iPhone Disconnects Errors During Backup by Using AnyTrans - Step 2

Fix iPhone Disconnects Errors During Backup by Using AnyTrans - Step 2

Situation 2. iTunes Could Not Restore the iPhone Because the iPhone Disconnected

When you are getting the message of "iTunes could not restore the iPhone because the iPhone disconnected", the three solutions below can be helpful.

 iTunes Could Not Restore the iPhone Because the iPhone Disconnected

iTunes Could Not Restore the iPhone Because the iPhone Disconnected

Solution 1. Fix iPhone Disconnects Errors During Restore by Changing USB Cables

Just like fixing iTunes could not backup the iPhone because the iPhone disconnected, maybe it is the USB cable that should to be blame. Change the USB cable or switch to another USB port, the problem should be fixed.

Solution 2. Fix iPhone Disconnects Errors During Restore by Booting iDevice and Computer

This is a solution that many iOS users forget to try. This is certainly the easiest thing you could do to fix iPhone disconnects errors during restore.

Solution 3. Fix iPhone Disconnects Errors During Restore by Using PhoneRescue

If you tried all methods above but failed, there is still one last solution you can try to fix the problem of iTunes could not restore iPhone because the iPhone disconnected - using PhoneRescue.

PhoneResue is developed to serve both Android and iOS users to recover data. However, PhoneRescue for iOS can also be used to restore iPhone with previous backup even if iPhone disconnects error occurs. What's more exciting, you can selectively restore data from iTunes backup to iPhone, that is to say, if you just want to get back some missing data, you don't have to suffer from risks of losing existing data.

Here is how to restore iPhone with previous iTunes backup with PhoneRescue.

Step 1. Free download PhoneRescue for iOS to your computer and then launch it. Please make sure there are previous iTunes backups on computer.

Step 2. Connect your iPhone to computer via an USB cable. Select Recover from iTunes Backup, then click the Right Arrow button to continue.

Fix iPhone Disconnects Errors During Restore by Using PhoneRescue - Step 2

Fix iPhone Disconnects Errors During Restore by Using PhoneRescue - Step 2

Step 3. PhoneRescue for iOS data recovery would display you all previous iTunes backups. Select one backup and click the Right Arrow button again. Then click Only Scan Backup if you want to view the data in iTunes Backup, click Compare if you want to find out the differences between the data in iTunes backup and iPhone.

Fix iPhone Disconnects Errors During Restore by Using PhoneRescue - Step 3

Fix iPhone Disconnects Errors During Restore by Using PhoneRescue - Step 3

Step 4. Select the data type you want to restore to iPhone from iTunes backup, don't forget to click OK.

Fix iPhone Disconnects Errors During Restore by Using PhoneRescue - Step 4

Fix iPhone Disconnects Errors During Restore by Using PhoneRescue - Step 4

Step 5. PhoneRescue would display you all data in iTunes backup. Select the data you want to restore to your iPhone, click the To Device tab. You can also save these data on computer as printable and viewable format.

Fix iPhone Disconnects Errors During Restore by Using PhoneRescue - Step 5

Fix iPhone Disconnects Errors During Restore by Using PhoneRescue - Step 5

That's all for solutions for iTunes could not backup/restore iPhone because the iPhone disconnected. If you are having any problems, please do leave comments below. By the way, AnyTrans offers all users 7-day free trial and you can transfer 50 items a day. Besides, it is always free to use PhoneRescue for iOS to scan and view the contents in iTunes backup, why not download them and have a try?

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