Hi. I have the same problem in this post. I have a XPS 9333 l322x with A03 Bios and i cannot install the new firmware because if i close or reboot doesn't work anymore, there is black screen with led blacklight open. I am in trouble to follow the point 1, in dont know how to do it. i have exctract the new firmware in another pc but i dont see any files to copy in the pendrive.
Hello i have a motherboard model Dell System Xps L322X Bios Version A03 wit Windows 8.1 downgrade 7 but if i use the code number on Dell Site support they show me XPS 13 9333 , code number is <private data removed>...:-( .. so...which kind of model have i?