Can't change stock bootanimation to something else on my Samsung Galaxy S7 Edge

So I rooted my device and I downloaded this app called "Boot Animations" https://play.google.com/store/apps/details?id=com.jrummy.apps.boot.animations&hl=en I found one I liked and installed it. From what I've seen the bootanimation.zip is in system/media. Which is where mine got installed so I placed the right permissions for it and rebooted my phone but my provider's animation keeps playing. So I don't know if I'm doing something wrong or if it is located somewhere else? My phone model is SMG935.