I wanted to take an old iPhone 11 Pro and downgrade from iOS 18 beta to iOS 17 for testing. I can download today (Sept 26) the restore image for the iPhone 11 Pro (and many others) but when I try to restore it (Finder Option click, select restore image), Apple rejects it (I guess they won't sign it).
If find this to be a problem. There is no reason why an iPhone in developer mode can't be used for testing a release less than a few weeks after the next release comes out.
Why do they have the restore images if you can't use them? Why is there no restore images for iOS 17.7?
Tom Pusateri
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