An Error Occurred Installing iOS 15.4: How to Fix it?

Although many iPhone users have already installed the new update, some users are getting the “There was an error downloading iOS 15.4” problem while getting the new update. Fortunately, I was not the one affected by this iOS 15.4 installation problem.

After installing iOS 15.4 on my iPhone, when I checked on social media to know people’s opinion about the new update, I realized that many iPhone users are struggling with the iOS 15.4 software update failed issue. 1. That’s why I have come to help with the solution to fix an error that occurred when installing the iOS 15 problem and installing the new iOS 15.4 successfully to enjoy new great features.

See More: iOS 15 FaceTime Screen Share Not Working, Why?

How to Fix “There was an error installing iOS 15.4”

1. Check WiFi connection

Before downloading the new iOS 15.4, you need to connect your device to the stable and faster Wi-Fi connection. If the Wi-Fi connection is not good and unstable, the iOS 15 installation process will run into trouble.

2. Check iPhone Storage

Low storage space on iPhone can also get you in trouble while installing iOS 15.4.1 update. If you encounter “There was an error installing iOS 15.4”, make sure you have enough storage space on your iPhone as the new iOS 15.4 is about 250MB in size.

3. Try again or try later

If you see the message “There was an error installing iOS 15.4”, your iPhone will also show you a message to try again, try later, or remind me later. Therefore, we recommend that you close the process and try it after some time. Maybe there is a problem on the part of Apple.

4. Restart your iPhone

Usually, restarting works like a charm when it comes to fixing an iPhone problem. Therefore, you can reboot or launch your device and then try to download and install iOS 15.4 on your iPhone.

5. Download iOS 15 IPSW

If the above methods don’t work for you to install IOS 15.4 via OTA, you can also skip this method and install IOS 15.4 manually via iOS 15 IPSW firmware. You need to download the iOS 15 IPSW file for your iPhone and use Finder or iTunes to install the update.


Did any of the above methods work for you to fix iOS 15.4 installation problem? Do you know of another way to solve this problem? Don’t hesitate to leave your comment below.

Leave a Comment