Why Can’t I Download iOS 12/11.4/11 on iPhone iPad

Why can’t I download iOS 12, iOS 11.4, or iOS 11? Why won’t my iPhone update to iOS 12/11.4/11? Read this guide to get the causes and also the quick tips to fix the cannot download iOS 12/11.4/11 on iPhone iPad problem.

By iMobie | Posted on: Sep. 06, 2018, Last Updated: Jan. 24, 2019

iOS 12 just comes out with new features and bug fixes. And the stable version of iOS 11.4 is available to public. Like many other users, you just can’t wait to download and install iOS 12/11.4 on your iPhone or iPad to try the new features. However, the updating does not run smoothly as you expected. You just cannot download iOS 12/11.4/11 or unable to install iOS 12/11.4/11. Why you can’t download iOS 12/11.4/11 and how to fix this annoying issue? This guide will give you the answer.

Why Can’t I Download iOS 12/11.4/11

Also Read: [7 Useful Solutions] Why Won’t My iPhone/iPad Update to iOS 12 >

How to Fix Can’t Download iOS 12/11.4/11 on iPhone/iPad

Tip 1. Restart or Reboot Your Device

Try this method firstly if you meet the can’t download iOS 12, or iOS 11.4/11 issue on iPhone iPad.

Restart your iDevice: Press and hold on the power button > Drag slide to power off > Open your device again after a few seconds.

Reboot your iDevice: Press and hold on the power button and the Home button until the Apple logo appears.

Tip 2. Delete Beta Version

The cannot download iOS 12, or iOS 11.4/11 issue may happens if the beta version is still on device. If so, just go to Settings app to remove it.

Step 1. Open Settings app > Tap General > Scroll down and tap on Profile.

Step 2. Tap iOS Beta Software Profile > Delete Profile.

Step 3. Reboot your device > Go to download iOS 12/11.4/11.

Fix Cant Download iOS 11 – Delete Beta Version

Fix Can’t Download iOS 12/11 – Delete Beta Version

Tip 3. Make Sure the Wi-Fi Connection Is Stable

Your device cannot download iOS 12/11.4/11 when the Wi-Fi network is poor. So make sure that your iPhone or iPad has an active Wi-Fi network connection.

Tip 4. Free Up Space on Your iPhone or iPad

The unable to install iOS 12/11.4/11 issue will happen when there is no enough space on iPhone iPad. You can delete some useless apps, old messages, unwanted photos or songs to free up space. Just backup your device in advance in case you delete some important items accidently.

Related Post: How to Free Up Space on iPhone iPad >

Tip 5. Keep Device Will Charged

Make sure your iDevice is at least 50% charged, or you can just connect it to power source. Then your iPhone or iPad will not drain out during the update process.

Tip 6. Wait for Few Hours

There may be so many users trying to update iOS 12, or iOS 11.4/11 at the same time, and cause Apple service overloaded. You can try to download iOS 12/11.4 after a few hours or a few days, it will be much smoother to make it over the air.

Unable to Install iOS 11 on iPhone iPad

Unable to Install iOS 12/11 on iPhone iPad

Tip 7. Update iOS 12/11 via iTunes

The can’t download iOS 12/11.4 on iPhone iPad issue often happens to users who try to update over the air. You can try to update your device via iTunes instead.

The Bottom Line

That’s all for why can’t I download iOS 12, or iOS 11.4/11 and why won’t my iPhone update to iOS 12/11, and the quick fixes. If you have any problem, just leave a comment and we will help you out soon.


Member of iMobie team, an Apple fan as well as an anime lover. Like to share solutions on iOS and Android related problems.