iOS 10 upgrade eats early worms, sends iPhone owners on hunt for iTunes

Some iPhone owners today reported that they were flummoxed by iOS 10, which failed to install, crippled their devices and sent them on a hunt for a Mac or PC armed with iTunes.
"I updated my iPad Pro 9.7 and iPhone 6S and both devices now request to connect to iTunes," wrote DjTaym in a message posted to Apple's support forum. "Once connected, I get a message that an error has occurred and that a restore is necessary. It reverts back to iOS 9.3.5."
Another customer was a lot hotter under the co