Originally Posted by Nick James
That's what I was going to do tonight. I figured I'd ask and be prepared, just in case.
Sent from my SAMSUNG-SM-G900A using XDA Premium 4 mobile app
So after messing with this for hours, I've come to the conclusion that the SD card was dead. Samsung is closed on the weekend to troubleshoot this but I'll call on Monday and get it straightened out. I bought the card originally from Amazon back on 9/2013, so its still under warranty. I'll probably just buy a new one because I know the process won't be an easy one.
Thanks for you suggestions!
and btw, I tried an old SD card and it worked perfectly fine- go figure.