Stuck on “reading file 901.ROM” – why EeePC 901 BIOS EZ-Flash isn’t working for you, and how to fix it

I had some fun last night flashing my EeePC 901’s BIOS up to the latest version.    I got the firmware from here and followed this guide.

My Eee sat there displaying “reading file 901.ROM” for about five minutes until I gave up and turned it off.

After a bit of Googling and a bit of thinking, I found the answer: the 4GB pen drive I was using was too big.  I’d formatted it in FAT 16 as required, and allocated a tiny 20MB partition so it wasn’t over the size limit.  Even so, EZ-Flash wasn’t able to read from it.  The limit seems to be 2GB, but I haven’t tested this – luckily I had an old 64MB pen drive lying around from 2003!  Even better, it was already formatted in FAT 16! 😀

I’m documenting this here to help anyone who has this problem in the future.  Good luck!


  1. Pete said,

    March 22, 2013 @ 11:23 pm

    FWIW, I’ve been struggling with this on my 1000H for weeks now. Same problem, stuck at reading file 1000H.ROM. I found an old 128 MB stick, but that doesn’t help either.

  2. Pete said,

    March 22, 2013 @ 11:30 pm

    Okay, so I worked it out. The solution was to follow “Drew”‘s instructions in the comments of the linked page (i.e. align to cylinder, etc.).

  3. Brian said,

    April 11, 2013 @ 8:10 pm

    Hi Pete, glad to hear that you solved it 🙂
    Sorry for taking so long to approve your comments!

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