iTunes has a lot of possible issues that could arise during the upd ate or restore process. Just like other error codes, there could be various reasons why iTunes error 3600 is happening. iTunes Error 3600 occurs whenever people update to a newer iOS software version or restore their iPhones from iTunes backup. It's normally caused by network se ttings when computer has administrator access.If you have iPhone error 3600(iTunes error 3600) problem, you can free download iOS System Recovery, it allows you to fix iOS issues with many common programs such as Error 3600. It is a 30-days free trial.One of the most effective systems recovery programs is FoneDog Toolkit- iOS System Recovery.This professional program aims to repair all kinds of iTunes error codes,