I just downloaded the iOS 11 beta from Apple's developer website, but I'm having such a headache downgrading back to iOS 10.3.2.
I installed their provisioning profile from their website, as instructed on their site.
To restore, I did the following:
I restarted my iPhone to recovery mode to restore it, only to be presented this message:
the iPhone could not be updated. Declined to authorize this image on this device for this user
I rebooted it to find the provisioning profile in order to delete it, only to find that the management page in settings was not there and neither Xcode/Devices nor Apple Configurator 2 showed any profiles.
Now I'm stuck on iOS 11, and I can't figure out how to downgrade.
Do you have any ideas?