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How to clear CMOS Password on Sony Vaio Laptop?

Q

QueZart

Member
OK If I remove all the screws in the pack the only Part of this thing I can get apart is the fingerpad Panel.

There are what looks to me like most likely the CMOS Batteries under it but Unplugging them and letting this thing sit for enire day did me No good.

I've tried removing all the screws I can see but the fingerpad panel is stil the onyl thing that comes loose with minimal pressure, and I dotn want to break anyhting by pryign to hard in the wrong spot.

Does anyone here Have experience with these things?
 
You need to ue the floppy supplied with the notebook !!!

When you boot with it in the floppy drive it clears the password. I assume for cd rom only notebooks their is a similar way.
 
hhm No Floppy I have a Set of CD's but it wont boot from them, the XP Install is completely screwed wont boot in anyway. I figure the BIOS needs set to boot from floppy.

However..................
 
Actually most notebooks make it difficult to reset the hardware password because of rampant theft. Generally a call to tech support is required and you will have to supply proof of ownership via fax, etc.

.bh.
 
Hi, The only thing I can think of is "Did you remove all power, main batt and Power pack when you pulled the CMOS batt?". If not pulling the batt did no good at all. It should have reset the CMOS and fixed your problem. Luck, Jim
 
Originally posted by: JimPhelpsMI
Hi, The only thing I can think of is "Did you remove all power, main batt and Power pack when you pulled the CMOS batt?". If not pulling the batt did no good at all. It should have reset the CMOS and fixed your problem. Luck, Jim
Click to expand...

Also, when you pull all the batteries, press the power button to clear the capacitors. They can store enough power for the BIOS for a while.
 
The CMOS is a block of static RAM that will lose its data if power is removed. I believe that most newer laptops are using a small block of Flash RAM (perhaps a block of addresses within the Flash BIOS chip itself) or other type of EEPROM chip to store the password. No amount of removing batteries and pressing power buttons will change it. My original reply (which generally agrees with MercForHire) is it - either get the pwd from the original owner or contact tech support. Perhaps a third option is available at the second link below.

Here is an article that supports my position: http://khali.linux-fr.org/vaio/

And another: http://www.pwcrack.com/security_chips_sony.shtml

.bh.
 
I found a program on the Internet awhile back that cleared the BIOS passwords for laptops. I used it on my roommate's laptop (Fujitsu) when I was fixing it. I will have to check and see if I can find it.
 

Johnnie's is good info for desktop systems (a simple CMOS clear will take care of most of them) - most notebook BIOS passwords are stored differently as already noted.

.bh.
 
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