Yeah if you flashed the carrier csc on the unlocked you'll get the Wi-Fi calling but won't get Ota updates until you flashed back the unlocked csc . If your into that, that's a work around.
Hey, so I got the unlocked Z fold 2 today. But don't have WiFi calling option available. Att told me they're unsure if it'll be supported or not. So if I wanted to finish att software via odin, do I want the att download the file for the SM-F916UZNAATT and flash it to my unlocked phone? Or do I do the sm-f916u1 and then select the att software that way?