Chosen Solution

i update my ipod touch and then there is a message error 2003

Error codes in the 2000 range are generally related to USB problems, make sure you’re using a high powered USB port directly on your computer, no hubs, no keyboards. Make sure they only things plugged into your USB ports are your phone, keyboard & mouse…nothing else. Disable or uninstall all firewalls & anti-virus software.

use original usb cable from apple, i did this and its works ! i don’t know why :(.

its very odd i was using an Anker powerline plus cable and getting this error used original apple cable and everything works fine

Had this error when updating my iPhone 5s. I was using an Anker power cable. Plugged the phone in using Apple branded lighting cable and it updated just fine.