Why can’t I download the IOS 16

yatsin Said:

"I have an iPhone 8. And I’m trying to download the IOS 16.7.2 because I need to download it in order to connect to my AirPods Pro "

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Installing iOS 16.7.2 on an iPhone 8:

Well, it is most certainly compatible. So, incompatibility is no more of concern: iOS 16 and iPadOS 16 are Compatible with these Devices - Apple Support

So, Update Using a Computer:

Have a Computer Handy? If so, try using a computer to update. Go here: Update your iPhone Using a Computer - User Tip. If any updates are availabe, they will install, sure enough.

yatsin Said:

"Why can’t I download the IOS 16: How to download the IOS 16 update."

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Please Provide More on your iPhone:

What's you iPhone model? What are you looking to update to? Without that being provided, read the following...

Updating an iPhone to iOS16:

Update Using a Computer:

What to Update: Installed apps and the iOS.

How to do so...

A. Verify Compatibility:

Identify your iPhone model. The first thing that comes to mind in incompatibility being the culprit. So, confirm the model of your iPhone. If iPhone model is incompatible with iOS 16, then it is because you iPhone does not meet the hardware requirements for this iOS version(s).

B. If Compatible...

1. Back Up First:

IMPORTANT: If you have an option to update, however, then be certain you backup your iPhone first. That way, you will have something to restore your iPhone from should anything go wrong with the update

then...

2. Proceed with the Update:

Go Here:  Update your iPhone Using a Computer - User Tip