I see. Well, that's tricky. AFAIK, only one firmware is available for this model right now and it comes with multi CSC. That's the one this rom is based on. So if you couldn't get it to work on stock, it's unlikely you'll get it working here.Thanks, actually I went with the international version because of unlocked bootloader, so mine is Exynos also. I am looking to get the WiFi calling and VoLTE to work on the US Tmobile network when using N960F D/S model.
Perhaps the CSC mod that dr.ketan is working on might help?