I used two different versions of Miunlock. I used version 4.5.813.51 in order to get an SMS sent. I also used a Google Voice number. This version might work with any number, but I was well and truly down the rabbit hole by this point. I then switched to version 6.5.406.31 for the unlocking...
Do you know if 7.3.2 resolves this problem and if so, where I can find that version?
Also, is there a way to remove or freeze the qfp service without unlocking the bootloader to get root?