Updating laptop cmos bios

Take a paper clip and stick it into the holes in the header connector to determine which lead needs to go to what pin on the DB25 using your multimeter. You then need to get a 5V line from another computer (The Red wire on a molex connector).

Solder three diodes in series and connect them to the 5V line.

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Thanks for your support, I just wanted to tell my story for others to try.

Regards, If the "Crash Free BIOS" update fails to work, an alternate method is to remove the BIOS ROM chip from the board (usually they are socketed, but some are soldered down) and program the part directly with a ROM programmer using a binary image of the BIOS.

After a lot research I stumbled upon a few pages (linked at the bottom) that documented the type of cable necessary and the software to use this port to reflash the bios.

The cable consists of a parallel connector wired to something you can plug into the pins that also has a 2.7V-3.6V input to power the chip while reflashing it.

The bios isn't removable, so surely there's some kind of device they plug into to reflash it for you I thought. Next to the BIOS chip, to the left of the south bridge, is an undocumented 7 pin connector labeled SPI_J1.

If you only tried the USB option for crash free then you should try floppy or CD.

The CD that came with your mobo also has the base rom on it and you should be able to use that as well (or burn yours to a cd). I had the exact same problem a couple years back (but I didn't use the Windows App) and since it was still under warranty I just sent it back because if I had pulled my rom I would have voided my warranty.

The turnaround on my replacement was 10 days (not business days). It booted and was trying to access the via floppy disk, but it stopped half way trough.

Use version 1803 (606.11 KBytes - 2007/11/30 Link to the BIOS download page), anything above wont work.

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