How do I stay on lollipop?

[AC Question]

I've got a Note 4. When it changed from Lollipop to Marshmallow it crashed. We got a replacement Note 4 which still has lollipop. I want to stay on lollipop, but when I connect it WiFi it starts the download. How do I make it stop trying on WiFi?

 

[Tim1954]

Go to settings and turn off auto software updates