When I downloaded the install for iOS for my 5S, I got the message for the wrong device for this firmware. I thought this was kind of odd. Since I downloaded the file for my iPhone. But when I read the filename. It said iPhone6.1_8.0_12A4265u_Restore. Could this be the file for the iPhone 6?
Edit:
I guess not. it said iPhone6,2_8.0_12A4265u_Restore on the second file.
And the last file worked for upgrading the iPhone