Is there a preferred version of DOS & phlash16 to be used when flashing a modded BIOS or recovering from a bad flash? I've been lurking around here and now have successfully flashed a modded BIOS on an older motherboard. This was more of a test than anything else. I would have tossed the motherboard had I bricked it. Now I want to go for higher stakes and install a modded BIOS for my Toshiba Satellite A205-5804 that was created by Busykid508 as described here. It's my belief I should try to use the manufacturer's tools whenever possible. I am able to dig some out of the most current BIOS download.. To do this I used 7-zip. The 9.10 beta version to be precise. Doing this, I can get a phlash16.exe file along with DOS files that I presume to be MS-DOS but could be a freeware clone. The DOS files can be used by the HP USB Disk StorageTool for creating a bootable USB memory stick necessary for BIOS flashing outside of Windows. But the articles that I've read here mention MiniDOS and other versions of phlash16. Are there reasons for using these instead or are these simply listed for everybody's convenience? I'm mainly concerned about recovering from any bad flash that I may do. Anyway, for those who may be interested, I'll now explain how to extract phlash16 and DOS files from Toshiba's BIOS download, sa200f3v250.exe (Actually, you can do essentially the same thing with Busykid508's modded BIOS download.) First off, when you install 7-zip, you'll have the option of integrating it into Windows Explorer which is how I always use it. You now can right-click on whichever file you want to extract from choosing the 7-zip option and its daughter dialog box or whatever this Windows feature is supposed to be called. (Trying to make this as easy as possible for the newbies but I suspect that this all old-hat for most everyone here.) Anyway, after you've downloaded sa200f3v250.exe, you can extract everything into a folder "sa200f3v250" using the right-click method I've just described. Go into this folder with Windows Explorer. Inside this folder there is a file "" which you will now do the same thing and extract everything inside there to yet another new folder, "~". As before, go into this folder. Inside "~", there is a file "2258d250.exe" which appears to be a WinImage Self Extractor file. Once again, right-click on this and extract everything into still yet another new folder, "2258d250". As before, go inside. Now you will find a single file, "2258d250.ima". Yes, once again, right-click on that and extract the contents into one more new folder, also called "2258d250". Go inside. Now you've finally gotten to all of the files that you may want: "msdos.sys", "io.sys" & "command.com", which are needed by the HP USB Disk StorageTool to make a bootable USB memory stick, "phlash16.exe", the Phoenix flash utility, and "autoexec.bat", which is actually a executable text file that will show you the proper command-line options for running "phlash16.exe". Speaking of options, does anyone know what "/mode=3" means and why this necessary? What will choosing each of the different mode numbers do for you?