Yes I flashed XAA and yes it reset my phone. My model number is now U1 and no carrier bloatware, but also no WiFi calling on Verizon but my software is still showing TMB/TMB/XAU. No matter what I flash it's stuck on TMB. And as long as it's on TMB I can't get WiFi calling on Verizon. That seems to be pretty well confirmed. The original post here gave an example with switching from one carrier's firmware to another, but that doesn't seem to be an option on these phones. I'll look at the link you posted thank you.Where you able to flash XAA and did it reset your phone ?
Read this post maybe some help for u there ?
UPDATE - issue is resolved. Thanks! Hi all, I got the notification to update this morning. Now, on the latest G955USQU2BQK5. Previously everything worked flawlessly. Now after the upate, I no longer have wi-fi calling. It's just completely...forum.xda-developers.com