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.

iOS 15.4 update error

I tried to update my iPhone to iOS 15.4 which came out recently. But after about 3 attempts, it kept popping an error message saying ‘error updating to iOS 15.4 ’ just when it has downloaded about 80%. And yet all this ate up my cellular data subscription. It’s now showing the download size of 15.4 at 4.05 GB from 967.9 MB and yet I’m on 15.3.1… what could be the fuss?

Posted on Mar 17, 2022 1:55 PM

Reply
Question marked as Top-ranking reply

Posted on Mar 17, 2022 2:15 PM

You need to be connected to a stable wi-fi to install an update. Trying to install an update on something other than 5G is very unstable.

1 reply

iOS 15.4 update error

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