While restoring your iPhone will install Apple's latest mobile update (currently iOS 16.5), it may also permanently delete important data and settings from your phone. Well, unless you've archived a backup from iOS 16, your only way to downgrade is to restore your iPhone as a brand new device.

You're not happy with this early version of Apple's software, and so you want to go back to iOS 16. Let's say you've upgraded to the iOS 17 developer beta and suddenly you're having issues. You may not be able to revert to iOS 16 without losing personal data Unless you're ready to take on such issues, you should not install iOS 17 on your iPhone yet, especially if it's your daily device.

This list of problems is simply to show what you can expect from early pre-releases. Most of the bugs, if not all, should be ironed out by the time of the general public release.

That's not a critique of the software itself, because all developer betas will have issues such as these, which is normal. Note: You can learn about issues other iOS 17 beta users are experiencing in this Reddit thread.

Note that there’s no longer support for the iPhone 8, iPhone 8 Plus and iPhone X. My Mac says a software update is required to connect with my iPhone, but the update doesn't install. Here’s a list of the iPhones that can download the iOS 17 update. I can't connect my iPhone to my computer.Certain applications don't work properly. Messages, eBay and a few banking apps have a few bugs.For example, I'm running the first iOS 17 developer beta on an iPhone 14 Pro and I've already had problems with several features and settings:

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