How to Fix An Error Occurred Installing iOS 13/12.4.1/12/11

When updating iOS 13/12.4.1, but with message noticing: “Unable to Install Upgrade. An error occurred installing iOS 12.4.1”, or “Software Update Failed. An error occurred installing iOS 13”? Check this tutorial to fix it quickly. These solutions also applying to fix the same issue when installing iOS 12/11.

Joy Taylor Last Updated: Jul. 20, 2020

Apple has released iOS 13 with great improvement in performance and security.  At this time of iOS big improvement and updating, iOS 13 has also brought some nice new features. Also, classical iOS 12 has improved its version of iOS to iOS 12.4.1. With the astounding new things, you must be eager to download and install iOS 13 over the air, or via iTunes, however, according to many users’ feedback, when they updating iOS 13/12.4.1, there came an iOS updating bug, a message noticing them “Unable to Upgrade. An error occurred installing iOS 13”, or “Software Update Failed. An error occurred installing iOS 12.4.1”.

So far we have not found the reasons leading to an error occurred installing iOS 13/12.4.1, and Apple also has not explained anything. But luckily we still have some practical solutions to fix it. And we have collected them in the following content. Keep reading.

An Error Occurred Installing iOS 12.4.1

An Error Occurred Installing iOS 12.4.1

How to Fix An Error Occurred Installing iOS  13/12.4.1

Tip 1. Check If Device Supports iOS  13/12.4.1

Firstly, you need to make sure your iPhone iPad iPod is compatible with iOS  13/12.4.1, or not. For example, iPhone 6 is not supporting iOS 13 anymore, according to Apple saying. You may go to the apple support to check your device being on the list or not.

Tip 2. Turn of Settings app and Wait for a While

If you have tried Retry option many times, but this an error occurred installing iOS 12.4 bugs is still there, why not close the Settings app and try again later? To remove the Settings App in the background: Double-tap Home button > Swipe up on the Settings app until it slides out of view. Several minutes later, try to install the update again: Settings > General >Software Update.

Tip 3. Reset Networking Settings

Occasionally network connection could be the reason why an error occurred installing iOS  13/12.4.1. So you can fix it by resetting device network settings: Go to Settings > General > Reset > Reset Network Settings.

Tip 4. Disable Wi-Fi, and Turn on Cellular Data

This way is similar to method 3, to check network connection. Firstly turn off Wi-Fi, and the switch to cellular data, for like 30 seconds, or 1 minute.

Tip 5. Force Restart Device

If the resetting network does not work, you can try force restarting your iPhone iPad iPod touch. Press and hold both the power button and the Home buttons simultaneously, until the Apple logo appears.

Tip 6. Update iDevice to Newest iOS Version with iTunes

Since unable to upgrade and software update failed to occur mostly when iOS  13/12.4.1 updating over the air, so you can upgrade your device with iTunes on the computer instead.

Connect your device to your computer > Run iTunes > Select your device > Choose Summary > Check for Update > Click Download and Update, enter your passcode if asked.

Fix An Error Occurred Installing iOS 12 via iTunes

Fix An Error Occurred Installing iOS 12 via iTunes

If you received the “No Update Found” message when updating with iTunes, there is because of the unpacked iOS update, downloaded before. Go to Settings > General > Storage & iCloud Usage > Tap on Manage Storage > Scroll down to check if you have the iOS 12.4 update list > Delete it if you have.

Tip 7. Fix 130+ System Errors of Apple Devices with AnyFix[Recommend]

Except for the above solutions, what we want to recommend you is AnyFix. The one-stop system recovery utility is specially designed for you to fix over 130 types of system issues for iPhone, iPad, iPod touch, or even Apple TV in few simple clicks.  Whether you encounter any problems like iPhone won’t update, iPhone won’t charge or turn on, stuck on Apple logo, etc., all you need is 1 simple tap.

Free Download

Free Download

* 100% Clean & Safe

Free Download * 100% Clean & Safe

Step 1. To solve your error on iDevice, go to download and launch AnyFix on your computer.

How to upgrade or downgrade ios version via AnyFix

Upgrade or Downgrade iOS Version-1

Step 2.  Choose “1 click to upgrade iOS/iPadOS” or “1 click to downgrade iOS/iPadOS” as you like, and then click “Sart Now” to fix it.

How to upgrade or downgrade ios version via AnyFix

Upgrade or Downgrade iOS Version-2

The Bottom Line

With these 7 methods above, you can definitely get rid of unable to upgrade to iOS  13/12.4.1, or software update failed. And also an error occurred installing iOS  13/12.4.1 would be gone, too. If you find these ways of working perfectly, please do not forget to share it to help more people. Thanks.

Joy Taylor

Member of iMobie team as well as an Apple fan, love to help more users solve various types of iOS & Android related issues.