Don’t press that update button quite yet.
According to multiple reports on Twitter from iOS users — including CNET’s Shara Tibken — the update process stalls at the end, followed by a prompt asking the user to connect to iTunes in order to complete the update.
The user is then given the option to restore or update the device.
Searching Twitter for “iOS 10 brick” (brick is a common term used to label an electronic device that’s rendered unusable) returns a long list of photos and results of various iOS devices, ranging from iPads to iPhones with the iTunes logo and a USB cable on the screen.
The only option users currently have is to plug the broken device in to a computer, open iTunes, and attempt to complete the update process.
Meaning, those who aren’t near a computer are left without a device until he or she can use a computer and update through iTunes.
We have asked Apple for comment and will update this post as soon as we hear back. Until then, you might want to hold off on updating your iOS device.