Did you uninstall anything using Titanium? I used Kies to return phone to stock and then applied the update. If you've removed certain files the update will freeze like that.
Also, I didn't have to remove root.
Sent from my SAMSUNG-SGH-I337 using Tapatalk 2
No, not at all. All I did was root. patch the stock email app to remove security, and then disable the bloat. I just removed my root manually and tried again. Still getting fail at 27%. Very strange. I no longer have the custom screen either after removing root and rebooting twice. It doesn't like something. Maybe I should re-enable all the stock junk?
It doesn't say install failed. It says install interrupted for some reason.