I've followed all the troubleshooting steps to download the latest update. This is the error code I get when trying to update via the USB Flash Drive: 3F4B-0000-3000-0915-8007-0070.
I've cleared my cache, formatted, deleted my profiles, etc. I don't have a firewall or connectivity trouble. It gives me the same error when I try to download the update on the xbox itself. Please advise.