Bricked BIOS Toshiba C850, need help ASAP

Discussion in 'BIOS Mods' started by robbiem, Mar 5, 2014.

  1. robbiem

    robbiem MDL Novice

    Mar 5, 2014
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    (posted in another forum before finding this one, I believe this is the more correct place for this)



    Hi, new here, looking for help.

    Bricked laptop. BIOS flash gone wrong. Need to reflash BIOS using USB stick method, and don't know how. :mad:

    Toshiba Satellite C850, model PSCBWC-05700J



    Here is the link to the original, correct, and 100% working BIOS that I need, but it's .exe file to be run inside windows.

    {arrgh, cannot post links without a 20 post count}

    It's Insyde Bios V 6.80 if that helps.

    I tried running an extractor to unpack the files from the .exe, and tried renaming the .FD file and loading to a USB stick, and I must be doing something wrong.

    PLEASE HELP, thanks.
     
  2. robbiem

    robbiem MDL Novice

    Mar 5, 2014
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    http(colon//)support(dot)Toshiba(dot)ca/support/isg/drivers/pscbwc/C850_L850-680-WIN.exe

    There, best I could do ^^^^^^^
     
  3. urie

    urie Moderator
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    May 21, 2007
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  4. robbiem

    robbiem MDL Novice

    Mar 5, 2014
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    I will try this thank you. I already have unpacked the BIOS, and I'm sure those two files are in there.

    Do I use both of those files, or just one? If both, how can I name them the same?

    Is the one with the extra "8" in it just for Windows 8 or what?
     
  5. urie

    urie Moderator
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    the F is for windows 7 and the F8 is for windows 8 have a look at the UBIOS.BAT you will find the info there.
     
  6. robbiem

    robbiem MDL Novice

    Mar 5, 2014
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    Got the file F680.FD renamed and onto the USB stick, formatted for FAT32 with nothing else on it. The file is at the root directory of the USB drive.

    LED on the USB stick blinks once when I plug in the power supply, but that's it.

    Holding down WIN + B while plugging it in makes no difference. Pushing the power button does nothing while holding the two keys, unless you hold it down for like 10 sec, then the POWER light goes off and it sits there. Doing nothing.
     
  7. robbiem

    robbiem MDL Novice

    Mar 5, 2014
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    I also tried using a CD with the file, and the CD drive spins up when I plug in the power supply, and then stops after a bit. No response from the lights on the laptop at all.
     
  8. urie

    urie Moderator
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  9. robbiem

    robbiem MDL Novice

    Mar 5, 2014
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    tried the filename HB2X64.fd did not work

    tried Fn + ESC, tried WIN + B, and on and on.

    Local computer repair shop said (via email) that they would have to desolder and replace the BIOS chip, $150 and two days. Fuuuuuuuuuck.
     
  10. robbiem

    robbiem MDL Novice

    Mar 5, 2014
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    #10 robbiem, Mar 5, 2014
    Last edited: Mar 5, 2014
    (OP)
    called Toshiba custserv, and of course, they say send it in.

    they swear that NO combination of keystrokes and USB messing around will do anything useful. I asked directly.


    :-(
     
  11. robbiem

    robbiem MDL Novice

    Mar 5, 2014
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    Tried creating a bootable WIN7 mini USB stick, it works fine in my desktop, nothing in the laptop.
     
  12. fjfc

    fjfc MDL Member

    Oct 13, 2012
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    I'll take a look at the BIOS
     
  13. fjfc

    fjfc MDL Member

    Oct 13, 2012
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    #13 fjfc, Mar 6, 2014
    Last edited: Mar 6, 2014
    Try these recovery file names
    FX64.fd
    10FX64.fd (I strongly believe this is the one that will save you because I found this in your BIOS):

    Screen Shot 2014-03-06 at 1.20.21 AM.png
    cross fingers, put only the 6MB fd file (F8680.FD) renamed to 10FX64.fd in the pen stick and try entering recovery as you were doing before, pen stick light may blink and dont panic, wait for notebook to reboot alone.

    I've seen some reports on toshibas, try different pen sticks, try different USB ports,
    some got it working with CD
    some other only got it working with large floppy disks (yes, believe)

    If none works, also try
    PLCSF8.fd
    bios.fd
    BIOS.fd

    If no go, this repair service for $180 is absurd, for this money you can change motherboard, if notebook is in warranty use it, say it suddenly stopped working and u'll get a mb replacement, also, if no, you'll spend less money buying the tools to reflash it by yourself than paying for this absurd expense service, I think $30 are enough to buy the tools