Today we’ll talk about how to fix iPhone update error 4000. So, you receive an error 4000 when trying to update your iPhone with iTunes on a computer. This is a common problem you may encounter during the update process and it failed. It’ll pop up a dialog box, saying The iPhone could not be updated. An unknown error occurred (4000). No guidance is given to fix the error code except for a More Information and OK option. If you now want to remove the iPhone error 4000 and continue the update process, you’ll need to identify and fix the root problem.
The error 4000 iPhone cannot be updated Unknown error has occurred message doesn’t offer specific details for us to spot the culprits.
So, there are a lot of reasons behind this issue, including a flakey USB port, an antivirus or a firewall, an out-of-date iTunes, software glitches on the iPhone itself, and so on.
The iTunes error code 4000 can also happen when there is a bug in iTunes for Windows that requires the phone to be unlocked during the update, although that's less common.
Now, follow me to learn how to fix iPhone saying error 4000 when updating by trying the troubleshooting steps below.
🌐Chapters of the video
0:00 Background
0:39 What does error code 4000 mean?
1:11 What’s the cause of an update error 4000 on iPhone?
1:45 How to fix iPhone update error code 4000?
2:10 1️⃣Update iTunes to its latest version.
2:56 2️⃣Switch a USB cable or a different USB’s port on your computer.
3:48 3️⃣Update iOS in iPhone’s Settings app.
4:32 4️⃣Restart iPhone to clear system cache.
5:43 5️⃣Update iOS via recovery mode.
Let us know if you have any further questions to solve error code 4000 while updating iPhone in the comments below.
#iphone#error4000#update#itunes
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