[Verizon] - How do I install Samsung factory image or Google Play pure image?

[AC Question]

[Verizon] - How to install Samsung factory image or Google Play pure image

I am currently on Verizon, but when my contract ends in a week I will be switching to another carrier. I want to know how to replace the image on my phone with one that is carrier agnostic. I want Verizon out of my phone.

Thanks