I have a Galaxy S20 Fe and while I've used tap to pay many times before, today it wouldn't work. Just as the reader has done in the past, it scanned no problem. Then an error. It flashes to a black screen with a blue dot center screen. "Place NFC reader near bla bla bla". I tried a dozen more times twisting and holding my phone a bunch of different ways. I even tried taking my case off. No success. Before I give up and leave empty handed I had to figure out what was different and why it doesn't work now. It turns out, my wifi calling was switched on. I turned it off and on the 1st try it accepted payment with no hesitation. Idk what the interference is or maybe it's a setting within wifi calling. If anyone knows anything about this please let me know.
