iOS 10 Problem
Error message -39 trying to update to iOS 10? What can I do to get my phone to update and not lose everything?
iPhone 6s, iOS 10
Hi,
Try this support article > If you see an error when you update or restore your iPhone, iPad, or iPod - Apple Support
This is why it's so important to backup your data prior to updating as suggested by Apple here > Update the iOS software on your iPhone, iPad, or iPod touch - Apple Support
