How to update a iPhone 6 on 12.5.5

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, or SE 1st generation, you can update to 15.7.6

• If you have an iPhone 8 or higher, or SE 2nd or 3rd generation,you can update to 16.5

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

Jdotxhemn Said:

"How to update iPhone 6 from 12.5.5"

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About Updating an iPhone:



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.

Make sure that you have a good Wi-Fi Internet connection and that the battery is fully charged.

Tap Settings > General > Software Update to install iOS 12.5.7