Something dealing with programs monitoring Winsock; see TS4123 Archived 2014-12-28 at the Wayback Machine for more information
Device was suddenly unplugged. iTunes couldn't connect with the device. Try it again
Error in your firmware files. Restore.
False permissions in the Carrier Bundle folder. Restore, update or fix the permissions from the carrier bundle to update the carrier settings via iTunes.
Device was suddenly unplugged. iTunes couldn't connect with the device. Try it again.
sn0wbreeze custom firmware error on USB connection. Unplug the device, reboot it, and plug it in again.
IPA signature verification failed.