unknown error 1667
what does unknown error 1667 when downloading update mean
MacBook Air (2018 or later)
Question marked as
Occurs when device is unplugged while the "iTunes will erase and restore your iPhone to iOS #.# and will verify the restore with Apple." dialog is shown. Check USB connections and try again.
https://www.theiphonewiki.com/wiki/ITunes_Errors/16xx#Error_1667
