Question about Sony VAIO PCG-K23 Notebook
This is something that I really would not recommend doing unless you are sure what you are doing as this can seriously harm the computer. The best suggestion is to contact the sony help online and send them your product number and serial number then they know what flash bios you have and can send you a link to the correct download. Through experience when I tried to do a flash bios upgrade my computer went dead until I opened the back and had to shock the dumb thing.
Posted on Jan 08, 2008
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Flashing a motherboard's BIOS can have many positive purposes and can help keep a motherboard compatible with changing technology.
PCnineoneone.com says that a proper BIOS flash can introduce enhanced features and bug fixes for the motherboard.
However, a bad BIOS flash can be devastating to a computer owner and very difficult to recover from.
If the proper preparations are made and all instructions are followed, a bad BIOS flash can be corrected.
Remove the side panel of the computer case, using the screwdriver to unfasten the screws normally located in the back.
Remove the jumper from its normal position on the motherboard and place it in the recovery position.
Usually, the jumper will need to be moved over one space to cover a previously exposed prong.
Locate the BIOS CMOS jumper on the motherboard, usually in the bottom, right corner.
The jumper consists of three metal pins facing upward and is usually marked with "CLR_CMOS" and has a plastic cap over two of the pins.
Check your specific motherboard manual if you are unsure where the jumper is.
If the motherboard does not have a jumper, removing the battery for 30 seconds and then replacing it may have the same effect.
Insert the BIOS flash disk and power on the computer.
If you used a flash tool or utility and did not create a BIOS flash disk before flashing the BIOS, then you will need to do so using a functioning computer.
Since there will be no video, listen for the internal PC speaker to beep.
This means it is performing the BIOS upgrade.
Power down the computer once the BIOS upgrade has been completed.
This process may take some time to complete, so be sure to not turn the computer off before the BIOS upgrade is finished.
Without video, the only way to be sure is to listen to the PC speaker.
When the upgrade is done, the PC speaker will beep again, and the floppy disk drive will turn off.
Replace the jumper back in its normal position and put the side panel of the computer back on.
Power the computer on.
If the computer turns on as normal, the recovery was a success.
How to Recover My Laptop BIOS
The BIOS is the basic input/output system on your computer that normally runs invisibly in the background, yet it's required for your computer to perform even the simplest task.
When something goes wrong with the BIOS, you might have difficulty even booting your computer.
There are a number of things you can do to recover a laptop BIOS that has gone wrong, ranging from relatively simple to somewhat costly.
Recover your BIOS by restoring the manufacturer settings as the first line of defense.
Reboot your laptop, reading the on-screen startup messages to determine what key you have to press on to enter the BIOS (normally "Esc" or "F2").
Press on the key when required to avoid booting into the main operating system, going instead to the BIOS screen.
Locate the item named "restore default settings" or "restore manufacturer settings"
(or something along those lines) within the BIOS.
Select this option using the arrow keys and pressing on enter, confirming when requested by pressing on the "Y" key.
This restores all of your old BIOS settings, potentially recovering your laptop BIOS with a minimum of fuss.
Send your computer back to the manufacturer or to an authorized dealer if restoring the factory default settings doesn't work.
The technician removes the old, faulty BIOS chip, replacing it with a new chip if possible.
It may also be a problem with the battery connected to the BIOS, which is always removable.
In many cases if the BIOS itself is the problem, the entire motherboard must be replaced since the BIOS chip is rarely removable in a laptop.
Hope this helps
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