First off let me share what I am trying to achieve then the question. I am on a VS 980 device, had verizon and switched to tmobile....yay.
Next, I am on a 4.4.4 rom specifically Slimkat [build 7.6] here:
I wish to flash a rom that includes wifi calling, [ the rom is a 4.2.2 base] Specifically here:
How and what do I need to do, before flashing this, without bricking?
If, there is a easier method ... such as flashing a tmobile rom and then a VS980 kernel ... could someone point me in the right direction.