A very important video on my phone, which was fine a few days ago, has stopped working. I get "Failed to play video An unknown error has occurred." whenever I try to play. It's not showing up in my gallery but still showing up in my files. The file information says the size is still 1.19GB and that it's stored in /storage/emulated/0/DCIM/Camera, but I don't know what that means except it doesn't look good. It no longer has a thumbnail and has failed to play on windows media player and quicktime when copied over to my laptop. I can't download VLC on here, but I feel like I'd get the same error message about file format/codec or whatever. I didn't mess with the video on my phone, so why is it suddenly corrupted? And the only one?! It was such a special memory and I'm so upset that this has happened. I'm wondering if it's a problem with the SD card in my phone (Samsung Galaxy S6). My phone has been getting really hot while charging recently, and I've noticed that when I plug the phone in, the only drive that shows up is "Phone" when I'm pretty sure I used to get both "Phone" and "SD card/storage"? Is there any way to fix this? There's nothing I can really do with an S6 myself though.. please help!