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Laurasc19 Author

Level 1

4 points

Unable to backup iPhone- error message

Trying to backup iPhone and a message keeps popping up saying unable to backup iPhone, ‘need to delete the backup for iPhone in device preferences’

I am using a windows laptop

Posted on Jun 15, 2019 5:50 PM

Top-ranking reply

seanachai51

Level 6

9,545 points

Posted on Jun 15, 2019 6:45 PM

When backing up your iPhone, iTunes generally does incremental backups. "An incremental backup is one in which successive copies of the data contain only the portion that has changed since the preceding backup copy was made". (Wikipedia) That being said, it sounds as though your previous backup may be corrupt, and needs to be deleted before you can continue.

Open iTunes > Preferences > Devices and then delete your previous backup.

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Unable to backup iPhone- error message

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