https://9to5mac.com/2016/11/24/apple-special-cdm-tool-macbook-pro-ssd-recover-repairs/ After a recent OS update my 2017 MBP will not boot. I've taken the laptop into the genius bar and they've tried everything under the sun to fix it without having to wipe the hard drive and do a fresh reinstall. I can go into recovery start up and use disk utility to see that the hard drive still has all the files on it. I tried making an image of some important folders I wanted to salvage and save them to an external drive, but after copying any folder over about 100mb the computer crashes and I get the black screen with flashing folder with question mark (like I get when I try to boot). The computer for some reason will not mount its hard drive when connected to another computer using the target disk mode. So the Apple tech suggested I go pay out of pocket to have a company recover my files (a few gigs of files on my desktop). I came across this article and wanted to see if the store could use this tool to recover my data. When I called they acted as if the tool didn't exist and asked where I heard about it. I said 9 to 5 mac. They then suggested it was misleading information, that they do not handle data migration unless the computer can boot up. Data salvage services can cost a lot of money and the drive seems to have all the data on it. Any suggestions on what I can do?