iPhone Won't Back Up or Transfer Data?

I've got an iPhone 12 Pro Max and just got the new 15 Pro Max. I've been trying to transfer my data to the new iPhone for days, but it's not working. My iPhone will not back up through iCloud, iTunes, or Quick Start. Is this happening to anyone else? Any suggestions would be much appreciated.

There are a few reasons that may cause your iPhone won't back up or transfer data:

• Poor Wi-Fi connection. Wi-Fi is not connected to the iPhone, and the Internet connection is slow, which stops the iPhone from backing up.
• Insufficient storage. Not having enough iCloud storage or not enough space on the target iPhone will cause data transfer or backup to fail.
• Minor glitches in iOS. If you are stuck on the Apple logo during data transfer, update your iPhone 15 to the latest iOS version and try again. This is because of a bug in iOS 17 that will cause you to get stuck during data transfer to the new iPhone 15.

After knowing the reasons, you should check your Internet and storage space and update your system. If you still cannot transfer data or back up your iPhone through iCloud, iTunes, or Quick Start, there is another way to help you achieve your goal - apply a third-party software.

EaseUS MobiMover is a powerful and trustworthy iOS data transfer tool that not only supports iPhone backup but also allows you to transfer data across mobile devices. It supports contacts, audio files, videos, pictures, messages, etc.

To Transfer Old iPhone to New iPhone 15:

Also, there is a Backup Manager section that lets you back up, restore, and view backup history. Connect your iPhone to the computer and click back up. This program will back up all the iOS data to your computer.

Related Article: 3 Ways to Back Up iPhone to Windows 10