Not able to update iPad Air 2 to iOS 13.6
iTunes thinks the update is completed, but the iPad just hangs at reboot. Progress line is almost all the way completed, but never quite finishes. I have tried hard resets several times. Can't restore iPad from iTunes because I can't turn off "find my iPad". Tried removing iPad from iCloud on my Mac, but iTunes still says "find my iPad" is on.
iPad Air 2 Wi-Fi