I would love to keep the 256 gb sd in the S5 but since it seems not to be working and I probably can't have 2 in at the same time, I have reluctantly stowed it for now. Of course, just because I bragged about being such a good caretaker and all around pocket person, I lost the darn thing. It fell right out of my pocket, along with other things. The good news is that I found it and now the SD and Cricket sim are in 2 separate bags in a larger bag of phone stuff. Meanwhile, photos and videos are apparently being automatically saved to sd, and I'm switching screenshots "by hand". That's taking a lot of time because it turns out that the phone has some dating back to last September. I suppose this sort of thing teaches patience...