An unknown error occurred when update my iPhone (4000)

I couldn't update my phone moreover I have cellular update failed error

Windows, Windows 10

Posted on Sep 20, 2021 9:44 PM

Reply
2 replies

Sep 21, 2021 5:58 PM in response to Fa6iima

Hello Fa6iima,


We see that you're having trouble updating your iPhone. We'd be happy to point you in the right direction!


The article listed above has some great steps that can help resolve issues like this. If the steps in that article don't seem to have done the trick, you'll want to reach out to Apple Support to look in to some options.


You can reach out to them here: Get Support


Take care!

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

An unknown error occurred when update my iPhone (4000)

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