I installed a leaked OS onto my q10 (T-mobile) a few weeks back and I have noticed that wifi calling is not possible on OS build 10.2.0.429. I wanted to know if I should just go back to the original OS that came with the phone. I am currently downloading leaked OS build 10.2.1.1259, if this doesnt have wifi calling on it as well can someone kindly direct me to where I can download the original OS that came with the q10 so I can go back and utilize wifi calling. Where I live has terrible service so I depend on wifi calling and really would like to not have to go outside everytime I need to make a call. Any suggestions will be greatly appreciated.