My phone won’t update to iOS 15 and I don’t know why. Cash you help me

shaemar129 Said:

"My phone won’t update to iOS 15 and I don’t know why. How can I fix this problem"

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For future reference...

Updating an iPhone:

Determining if an Update will Install:

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 iOS13 and/or iOS14 and/or iOS15 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:

Use my User Tip:  Update your iPhone Using a Computer - User Tip

The iPhone 6 is not compatible with iOS 13 or higher.

The highest possible for that model is iOS 12.5.5.