Thanks so much, so just open those two and that's it. So iTunes recognised the phone after the mobile device installer, what do I need the the CoreTypes one for, what does that one do?New links, for High Sierra -> Sequoia
https://swcdn.apple.com/content/dow...upzyl2ogm2eu3cetwo3f8h8pwufnz5u/CoreTypes.pkg
https://swcdn.apple.com/content/dow...u3cetwo3f8h8pwufnz5u/MobileDeviceOnDemand.pkg
I think Apple stopped signing iOS 17 builds, so you can't downgrade. You can check on https://ipsw.me/
17 went quick! Big big shame, hope they sort this on next .1
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