The most common iTunes error 1600, 1601, 1602, 1603 and 1604 often pop up during upgrading or downgrading firmware on iPhone, iPad Air, iPad Mini or iPod Touch…
The best thing is to avoid iTunes error. In many cases, the USB hub was causing the error 1600 and 1604. So, to fix error 1604 or 1600, first try to connect your iPhone, iPod Touch or iPad Air directly using the cable that you have got while purchasing.
Suppose, iTunes error 1600, 1601, 1602, 1603 or 1604 still persist, change the port or at the end try to change the computer. I have seen many users who confirmed that after changing the laptop or computer the iTunes 1604 and 1600 have been fixed automatically.
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In some cases, TinyUmbrella also fixes iTunes 1604, 1603, 1602, 1601 and 1600 errors. If you are aware of TinyUmbrella, you would have to start TSS server and complete the procedure to restore or downgrade your firmware.
While many users have reported that iReb iOS 9 helps to fix these errors. To fix the iTunes error, update your iTunes to the latest version and download iReb 2015 for Windows or MAC OS.
Suppose, you are still getting these errors and you can’t fix them, leave a comment and we would try to help you out…