Hi. Im using an iPhone 8 Plus and im planning to upgrade to ios 16/17. I tried downloading the configuration profile both from the official beta website and from betaprofiles. But it shows this error saying that this profile has an invalid signatute. Pls let me know how this can be resolved. Thank you.
[Re-Titled by Moderator]
iPhone 8
For the iOS 18 beta, you will need iPhone XR, iPhone XS, iPhone SE 2nd gen, or newer.
iPhone 8 Plus support tops out at iOS 16, and is not supported on iOS 17 or later.
If you currently have an iOS beta profile installed from an older beta, remove it, and update again: How to uninstall iOS or iPadOS beta software - Apple Support
How Apple implemented beta access changed at iOS 16.4 and later, so check the details in the linked article there.
For the iOS 18 beta, you will need iPhone XR, iPhone XS, iPhone SE 2nd gen, or newer.
iPhone 8 Plus support tops out at iOS 16, and is not supported on iOS 17 or later.
If you currently have an iOS beta profile installed from an older beta, remove it, and update again: How to uninstall iOS or iPadOS beta software - Apple Support
How Apple implemented beta access changed at iOS 16.4 and later, so check the details in the linked article there.
You can not—
Latest release of iOS 16 —>16.7.8
About iOS 16 Updates - Apple Support
ref: Update your iPhone or iPad - Apple Support
The iPhone 8 can only be updated to IOS 16. Go to Settings> General> Software update to update the phone.
How to upgrade to iOS16/17 on iPhone 8 Plus
