Greetings, Couldn't find a single reference to this error code anywhere on the internets, so here I am. It happens while I'm trying to perform a simple sync with iTunes. Here's the deets: MacBook Pro 10.6.7 iTunes 10.3 iPhone 4 4.3.2 Jailbroken "The iPhone cannot be synced. An unknown error occurred (-50)." It gets past the backup step as well as the syncing mail accounts step. Then the error pops up on the next one (I think it's trying to verify purchases). The only significant changes to the computer and phone since the last sync were the upgrade to iTunes 10.3 and turning on automatic downloads on the phone. That's it.