I've been trying since several hours to update my recently bought iPad 4 with stock iOS 6.0.1 and trying to update using iTunes to the latest iOS 6.1. Note that i had already downloaded the OTA update to 6.1 on the iPad but never installed the update. I figured it was best to install the full firmware update from iTunes. I've read and tried almost every single guide out there on this problem, but i really don't know what else to do as my iPad is completely unusable! I set the iPad in DFU mode and downloaded the 6.1 official firmware update from Apple (size: 1.09 GB) and then pointed the restore to it from iTunes. I keep getting errors 1601, 1604, etc and the restore process aborts every time after a few minutes. I have the 32 GB Wi-Fi only iPad 4 and i do not have any backup of my apps and data, but i don't care. I can always re-download all my paid apps and re-transfer all of my data. At this point, i only want my iPad to be operational again. HELP!!!
Here is the guide that i've followed mainly:
TUTORIAL - Failsafe method to restore the current version of IOS
and i downloaded the 6.1 firmware for my iPad 4 at this link (from the guide above):
Official Apple IOS Firmware Download Links for iPad
Maybe i should try restoring the 6.0.1 firmware?? I'm downloading it right now. It's the only option i have left anyway. Let's hope my iPad 4 isn't a goner.