According to this page: https://support.apple.com/en-gb/HT205064 and this:
To see any devices running iOS 7 or OS X Mavericks or earlier, you need to be signed in to iCloud on the device and you need Find My iPhone turned on.
I need to be signed into iCloud and have Find my iPhone turned on. I have done both of those things and Find my iPhone locates it as well, but the device doesn't show up on my iCloud or AppleID account even though it backs up on iCloud.
What can I do to fix this?