I'd like this one too! Did anyone have success before I try it? Do you know how to update and replace the backup bios if the main one is flashed successfully?
I am glad to inform you that I have changed OS SKU "Non-Vista" to "Vista" in Presario C773TU by using HPBC259.exe (HP DMI), nevertheless the status is not being appeared in BIOS Setup Window (F10). But whenever I am reading bios configuration through this HP Utility, it has changed. Please help me to update BIOS with SLIC 2.1.