I'm quite upset about this and hope I can retrieve at least some photos from my SD card that was in my Galaxy S5. It's a 16 GB card that, for some reason, appears to have gotten corrupted during a Security Update to the phone. I've placed it in my USB card reader and the message I get is that it needs to be formatted. Somewhere around here I have a very good recovery disk. Sadly, though, during our move, it's become AWOL. I hope to find it soon. BUT, in the meantime, has anyone had a similar experience and also had some luck recovering some files from a SD card?