unknown error (4000)
can't update my apple 13 mas pro with itunes.
unknown error (4000)
what is the issue?
iPhone 13 Pro Max
Question marked as
See If you can't update or restore your iPhone, iPad, or iPod touch - Apple Support. If you're trying to update using iTunes try over the air instead, or vice versa.
Note if you're getting a -4000 error when updating from iTunes you may need to remove your device passcode, update, then enable again afterwards.
tt2