How to update my software

Isaacawuku Said:

"how to open my software update"

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Updating an iPhone 6:

What to try...

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.

iPhone 6 cannot be updated any higher than iOS 12.5.7

Chances are, you already have that installed, correct? You have reached the end of the update road for the iPhone 6.