Question : Problem: Trouble with my Sony VAIO PCG-GRX520 laptop - will not start after I updated the bios

Hey everyone,

I recently did a fresh install on my VAIO PCG-GRX520 laptop using XP Pro.  After the installation, I ran updates and then installed the drivers I picked up off the sony website.  One of the updates was for the BIOS.  The funny thing is, I remember my laptop working after I rebooted.  Later I try and turn it on, all I get is the power light.  It doesn't even run off the battery.

Is there a way to Flash the Bios?  I was reading that I might need to swapped the BIOS chip itself.  What would be the troubleshooting steps to determine it is the BIOS.  I figure if the BIOS doesn't boot up, then it has to be that.

Answer : Problem: Trouble with my Sony VAIO PCG-GRX520 laptop - will not start after I updated the bios

OK, back to solving problem.  You need to open laptop case and find a small jumper next to CMOS battery.  You set this jumper to pins 2-3 for 2 minutes, then replace to pins 1-2.  Then try to boot laptop.

If laptop boots, you are fine.  If it FAILS to boot, this means you powered laptop off before the BIOS was finished being flashed, and this is fatal to any motherboard BIOS.  The best you can do in this case is BUY a new BIOS chip for the motherboard from SONY.  Of course, they will say they cant sell you one and you cant replace it, that is how they are, so the reality sets in that you have maybe trashed your entire laptop.  Sorry.