How do i update my iphone to ios 13

Hello ~ You can update to iOS 12.5.7 but no further. Click on the links below….

Update your iPhone or iPad - Apple Support

If your iPhone or iPad won't update - Apple Support

If you need a higher version of iOS you will need a newer iPhone. Click below to shop for a new device…

iPhone - Apple Official Site

If you purchase a second hand device please take a moment to read these helpful links by clicking on below to make an informed decision…

Activation Lock for iPhone, iPad, and iPod touch - Apple Support

Also:

The All Too Common SAD Reality of Buying a Used iPad/iPhone

~Katana-San~

You don't, sorry. See why in this compatibility list:

You are welcome

I want u to update my iphone to iOS 13.0

Not possible.

I want u to update my iphone to iOS 13.0

This is not possible. iOS 12.5.7 was the last and final update for the iPhone 6. No more updates for the iPhone 6.