How annoying nothing from Vodafone and I'm not sure how you go about changing the firmware to BTU any advice would be truly welcomed...
Just flash the xeu firmware. Grab it from sammobile and flash with odin
lastest Firmware for BTU
CSC do normal CSC (don't do Home). otherwise CSC won't change.
YouTube Video will help
also will volte (4g calling) work after chaging fimware to BTU or XEU?
It works on both and it works on beta firmware too but wifi calling doesn't seem to work on beta.