You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

itunes says my phone could not be updated. error code 400

itunes says my phone could not be updated. error code 400. what is the problem / fix?


Windows, Windows 6

Posted on Feb 1, 2021 7:40 AM

Reply
Question marked as Top-ranking reply

Posted on Feb 1, 2021 9:53 AM

See If you can't update or restore your iPhone, iPad, or iPod touch - Apple Support. If you're trying to update over the air try using iTunes instead, or vice versa.


If the code is -4000 then disable Find My IPhone before updating with iTunes for Windows then enable it again afterwards, or update over the air.


tt2

1 reply
Question marked as Top-ranking reply

Feb 1, 2021 9:53 AM in response to SFCbwd

See If you can't update or restore your iPhone, iPad, or iPod touch - Apple Support. If you're trying to update over the air try using iTunes instead, or vice versa.


If the code is -4000 then disable Find My IPhone before updating with iTunes for Windows then enable it again afterwards, or update over the air.


tt2

itunes says my phone could not be updated. error code 400

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.