I got a Samsung 256GB SSD in a MBP that I bought off of CL a few months ago. After 2 months, it wouldn't boot, and it turned out the drive node-tree is likely corrupted beyond repair. I don't need to get anything off of it, I just want to reformat the thing and start from scratch. Disk Utility sees it when mounted via USB, but obviously won't repair it, and won't restore it either. DiskWarrior won't work with it either, and TechTool doesn't see it at all. Any thoughts on how I can get this puppy running? Cheers.