Question about Sony VAIO GRX520 Notebook

4 Answers

I forgot BIOS password for SONY PCG-GRX520

Hello, I have a question according "reset BIOS password"I changed my BIOS password and I can't load my notebook. Could you,please, help me. How I can reset this password? On the official site (for SONY VAIO) I not found information. For other models I observed, but for my notebook I not found. Thanks for your advice.

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  • dulevets Nov 18, 2009

    Thanks, I will be try to find bios battery, because I removed general battery but without successfully result.

  • dulevets Dec 01, 2009

    I did everything above, but it did not help. Password was not cleared. System date and time have been reset but not the password.




  • SpotmauSally May 11, 2010

    I am a technical expert for Spotmau Password Genius and devote to providing you with the best solution to recover your password .With Spotmau Password Genius you can easily find any password like MSN Hotmail password, Yahoo password, Outlook password, IE AutoComplete password, Web Site logons, dial up password, Windows Administrator or user account passwords, Windows and Microsoft Office product key . Hope you enjoy your PC experience. Learn more about Spotmau Password Genius :http://www.password-genius.com/

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The best way for the Sony is to remove the cmos battery for at least 30 minutes. Remove the main laptop battery and leave it out. Make sure the power adapter is not attached. The cmos battery can be reached after removing the keyboard and is attached to the motherboard vis a small cable. If you have a "jumper" that come equipped on hard drives to jump the pins on the back, you can "short" the pin connections on the cmos battery socket, power the laptop up using the ac adapter and letting the computer go through the bootup process. When this happens power the laptop back down, take the jumper off and replace the cmos battery. Power back on with just the ac adapter and boot the computer. If the laptop still askes for a bios password just hit enter and it should allow you to log in. Once in go into the bios and reset the date and time. Once that is done power down and replace the main battery. Reboot the laptop and let Windows load.

Posted on Nov 19, 2009

  • Chip
    Chip Dec 01, 2009

    I know you have probably tried taking the cmos battery out but lets try it longer now, maybe even overnight.



    Take the cmos battery out for 30 minutes or more, then put it back and the data contained into the BIOS memory should be volatilized. I'd suggest you to remove it for about one hour to be sure, because if you put it back when the data aren't erased yet you'll have to wait more time, as you've never removed it. If at first it doesn't work, try to remove the battery overnight.

    Important note: in laptop and notebooks you don't have to remove the computer's power batteries (which would be useless), but you should open your computer and remove the CMOS battery from the motherboard.
    Short-circuiting the chip
    Another way to clear the CMOS RAM is to reset it by short circuiting two pins of the BIOS chip for a few seconds. You can do that with a small piece of electric wire or with a bent paper clip. Always make sure that the computer is turned OFF before to try this operation.



    If nothing works, you could replace the existing BIOS chip with a new one you can buy from your specialized electronic shop or your computer supplier. It's a quick operation if the chip is inserted on a base and not soldered to the motherboard, otherwise you'll have to unsolder it and then put the new one. In this case would be more convenient to solder a base on which you'll then plug the new chip, in the eventuality that you'll have to change it again. If you can't find the BIOS chip specifically made for your motherboard, you should buy one of the same type (probably one of the ones shown above) and look in your motherboard manufacturer's website to see if there's the BIOS image to download. Then you should copy that image on the chip you bought with an EPROM programmer.

    Important
    Whether is the method you use, when you flash the BIOS not only the password, but also all the other configuration data will be reset to the factory defaults, so when you are booting for the first time after a BIOS flash, you should enter the CMOS configuration menu (as explained before) and fix up some things.
    Also, when you boot Windows, it may happen that it finds some new device, because of the new configuration of the BIOS, in this case you'll probably need the Windows installation CD because Windows may ask you for some external files. If Windows doesn't see the CD-ROM try to eject and re-insert the CD-ROM again. If Windows can't find the CD-ROM drive and you set it properly from the BIOS config, just reboot with the reset key, and in the next run Windows should find it. However most files needed by the system while installing new hardware could also be found in C:WINDOWS, C:WINDOWSSYSTEM, or C:WINDOWSINF .

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Remove bios battery for about 20 minutes, and put back in and try again. It should clear the password.

Posted on Nov 18, 2009

  • Nate Stansfield
    Nate Stansfield Dec 02, 2009

    If you have mistakenly forgot or lost your BIOS
    password or you receive a password at boot that you do not know, you
    will need to clear the BIOS password by one of the below methods.

    Precaution: When inside the computer please be sure of the potential of ESD.



    • Try using generic BIOS passwords. A complete listing of these passwords can be found on document CH000451.

    • There
      are utilities designed to help bypass BIOS passwords. An example of a
      great utility to decrypt / bypass BIOS passwords is the PC BIOS Security and Maintenance toolkit, which is available by clicking here.

    • On the computer motherboard locate the BIOS clear / password jumper or dipswitch
      and change its position. Once this jumper has been changed, turn on the
      computer and the password should be cleared. Once cleared, turn the
      computer off and return the jumper or dipswitch to its original
      position.
    The location of the jumpers or
    dipswitches may vary; however, here are general locations where these
    jumpers / dipswitch may be located.



    1. On the edge of the motherboard
      - Most jumpers are located on the side of the motherboard for easy
      accessibility, verify by looking at all visible edges of the
      motherboard.

    2. By the CMOS battery - Some manufactures will place the jumper to clear the CMOS / BIOS password by the actual CMOS battery.

    3. By the processor
      - Some manufactures will place the jumpers by the processor of the
      computer. However, note that in some cases these jumpers will be to
      change the processor and not the password.

    4. Under the keyboard or bottom of laptop - If you are working on a laptop computer
      the location of the dipswitch (almost never a jumper) can be under the
      keyboard or on the bottom of the laptop in a compartment such as the
      memory compartment.

    5. Other visible location
      - While it is possible that the jumpers / dipswitches may not be in a
      visible location, most manufactures try to make things easier by
      placing the jumpers / dipswitches in another visible location.

    Additionally,
    when looking for the jumper / dipswitch the label of that switch can be
    anything; however, in most cases will be labeled CLEAR - CLEAR CMOS -
    JCMOS1 - CLR - CLRPWD - PASSWD - PASSWORD - PWD.



    • On the computer motherboard locate and remove the CMOS battery for at least 10 minutes allowing the computer to lose its information. Note: this will not work on all computers.

    • If
      your manufacturer has a bypass password this can be entered and allow
      you access to the BIOS and/or computer. Because of the security risk of
      a bypass password, generally only older computers will have this
      option. In addition, it is likely that this information will only be
      able to be obtained from the computer, motherboard or BIOS manufacturer.

    • On the computer motherboard
      locate the CMOS solder beads and jump the solder beads to clear the
      password. The identification and location of these solder beads can
      vary and if not available in computer documentation is generally only
      obtainable through the computer manufacturer.
    If
    one of the above solutions do not clear the password or you are unable
    to locate the jumpers or solder beads, it is recommended you contact
    the computer manufacturer or motherboard manufacturer for the steps on clearing the computer password.


  • Nate Stansfield
    Nate Stansfield Dec 02, 2009

    Introduction to BIOS Passwords

    The best method to reset a BIOS password depends on what BIOS the
    computer has. Common BIOS's include AMI, Award, IBM and Phoenix.
    Numerous other BIOS's do exist, but these are the most common.





















    Some BIOS's allow you to require a password be entered before the
    system will boot. Some BIOS's allow you to require a password to be
    entered before the BIOS setup may be accessed.


    The general categories of solutions to reset a BIOS password are:



    • Using a Backdoor BIOS Password

    • Resetting the BIOS Password using Software

    • Resetting the BIOS Password using Hardware

    • Vendor Specific Solutions for resetting the BIOS Password


    Using a Backdoor BIOS Password

    Some BIOS manufacturers implement a backdoor password. The backdoor
    password is a BIOS password that works, no matter what the user sets
    the BIOS password to. These passwords are typically used for testing
    and maintenance. Manufacturers typically change the backdoor BIOS
    passwords from time to time.


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A. By Using the Motherboard Jumper:
In most motherboards CMOS battery is soldered, which makes it difficult to remove the battery. In this case we use another method.
Almost all motherboards contain a jumper that can clear all CMOS settings along with the BIOS password. The location of this jumper varies depending upon the motherboard brand. You should read your motherboard manual to check its location. If you don't have the manual then look for the jumpers near the CMOS battery. Most of the manufacturer label the jumper as CLR, CLEAR, CLEAR CMOS, etc.
When you find the jumper, look carefully. There will be 3 pins and the jumper will be joining the center pin to either left or right pin. What you need to do, is remove the jumper and join the center pin to the opposite pin. e.g. if the jumper joins center pin to left pin, then remove it and join center pin to right pin. Now wait for a few seconds and then again remove the jumper and join the center pin to left pin.
Make sure to turn the PC off before opening the cabinet and resetting the jumper.

B. By Using Software:

I have found that BIOS/CMOS Password Recovery Tool is the most effective.:
BIOS/CMOS Password Recovery Tool is a program that works instantly to remove any lost or forgotten BIOS/CMOS password. Simply boot your PC to DOS and execute the program, and get access to forgotten BIOS/CMOS passwords in just seconds
BIOS/CMOS Password Recovery Tool Service: http://www.biospasswordrecovery.com/

Posted on Dec 11, 2009

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  • Yahoo password,
  • Outlook password,
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  • user account passwords,
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Posted on Dec 11, 2009

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