HD calling with video verizon note 4

I was informed by VZW that my note 4 is ready for HD calling with video. The feature has been on my account for some time. It worked with our galaxy S5 phones. When I upgraded my phone to the note 4 , I lost the feature. VZW told me I can use it on my phone with the lollipop update. Unfortunately, I have blocked all OTA updates on my phone while waiting in hopes we would get a root on the retail devices. So here is my issue. I want to install the file for HD calling with video, without updating to lollipop. Does anyone know of a way of getting the extracted file or files to install for video calling? I don't know if anyone is in the same situation but thought I would see if there is a work around.