I'm trying to update an iPhone 6s to iOS 11 Beta 2, however on every attempt the install fails.
When attempting via OTA
The download completes after several minutes, but presents an error message saying that the installation failed (with two buttons, close and "Go to Settings").
When attempting to install via iPhone_4.7_11.0_15A5304i_Restore.ipsw
'The iPhone "X" could not be updated because the firmware file is incompatible.'
I think that I heard that there were firmware updates in Beta 2, but for some reason this phone won't update them? Has anyone worked around this issue and updated?