How to update my iPhone 6

Update your iPhone, iPad, or iPod touch

• If you have an iPhone 5S or 6/6plus, the highest you can update to is 12.5.7

• If you have an iPhone 6S through 7, you can update to 15.7.3

• If you have an iPhone 8 or higher, you can update to 16.3

Go to Settings > General > Software Update.

This link will show you how to update your iPhone, iPad, or iPod touch using WiFi -

Update your iPhone or iPad - Apple Support Update your iPhone or iPad - Apple Support

This link will show you how to update using your computer -

Update iOS on iPhone - Apple Support Update iOS on iPhone - Apple Support

EMMAXP5 Said:

"How to update my iPhone 6: How to update my iPhone 6"

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Updating an iPhone 6:

Update Using a Computer:

You can use a Computer to update. Read My User Tip: Making Use of a Computer for Updating an iOS Device - User Tip. If any updates are available, they will install, sure enough.