iTunes won't back up my iPhone after iTunes 12.5.1 update
When iTunes prompts for a new update, I always accept it. However, this time when I connected my iPhone 6s to my computer, I couldn't back up my iPhone after the latest iTunes update.

Of course, I'm not the only one with this problem. When such a problem occurs, you will receive the following message:
"iTunes cannot back up iPhone because an error occurred"
"iTunes cannot back up iPhone because iPhone cannot start the session"
"iTunes The iPhone cannot be backed up because the backup is corrupt or incompatible with the iPhone being restored"
"iTunes cannot back up the iPhone because the backup cannot be saved on the computer"
...
For iPhone won’t backup to iTunes error, there are basically 5 solutions.
The following solutions work for all models of iPhone, iPad, and iPod, including:
- iPhone 7/7 Plus, iPhone 6s/6s Plus, iPhone 6/6 Plus, iPhone SE and lower
- New smaller iPad Pro, iPad Pro, iPad Air 2 and lower
- iPod touch 6G/5G/4G/3G, iPod nano, iPod classic, iPod shuffle etc.
Solution for iPhone will not be able to back up to iTunes after updating iTunes
1. Make sure you have downloaded the latest iTunes. The latest version always fixes previous bugs.
2. Connect your device to your computer using a USB cable, and then select your device in iTunes. If your device doesn't appear in iTunes, you'll need to resolve the issue before continuing. Or, learn what to do if you've forgotten your password or your device has been disabled.
3. Restart your computer and iPhone. Then open them again. If you encounter this problem, try Tenorshare ReiBoot, a free iPhone reboot tool.
4. If you are using a Windows PC and iTunes becomes unresponsive or the backup never completes, you may need to update, change, disable, or uninstall your security software. Mac users don’t need this step.
5. For users with multiple computers, please try to backup on other Mac or PC. Alternatively, use iCloud to back up your device and restore from iCloud backup.
6. To fix iPhone not backing up to iTunes, you can also try Tenorshare TunesCare, which can completely resolve all iTunes errors.
Alternate Backup Solution: Tenorshare iCareFone
More often than not, your misery is the result of your bad behavior. Whether you are just starting your iPhone journey or have been an iPhone friend for a long time, back up your iPhone regularly and enable My iPhone. Once completed, your data will be recoverable and safe.
However, not everyone can use iTunes and iCloud skillfully as they wish. If you do the same, leave the backup procedure to Tenorshare iCareFone. This will free you from the limitations of iTunes backup. Tenorshare iCareFone (iPhone Care Pro) can be a good choice when iTunes fails to backup iPhone or cannot backup/restore iTunes backup due to other reasons. You don't need to use iTunes during the entire backup and restore process.

In addition to backup and recovery, Tenorshare iCareFone also includes other features to tweak iOS devices:
- Fix Difficult iOS
- Repair Operating System
- File Manager
- Speed up and Clean
- Remove Ads on iDevices
For more details, please visit Tenorshare iCareFone Guide Page >>
The above is the detailed content of Share the fix for iPhone not being able to back up after iTunes update. For more information, please follow other related articles on the PHP Chinese website!

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