Question about IBM ThinkPad R40 2722 Notebook

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BIOS password Does anyone know how to get by the BIOS password when booting if the password was changed and don't know what it is?

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  • workwkids1 Feb 22, 2008

    how do I find out the backdoor password

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Hi the only way you can do this is by removing the internal button battery thats inside the laptop then switch it on and off a couple of times then put battery back in this should remove bios password this is one of the only ways you can do this.
The other now depends on the board in your laptop some laptops but not all have jumper switches usuall one of these switches is to enable and disable the bios password not all laptops have this though but if you look its a strip of about 5 or 6 switches small but push up or down their should be a sticker inside the laptop telling you what each switch is for i had to do this when i brought a second hand laptop witch had the password on it hope this is some help.
Also try google and ask for
How to remove bios pasword on laptops
this should then list sites that show you how to do this let me know if you need further asistance
Removing the button battery stops the clock working and should disable password but switch on and off few times with bat removed then put back in ok let me know how you get on ok

Posted on Feb 22, 2008

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Hi,
You need flash your BIOS!!! You can't recovery because it is bios so you need to flash it!
good luck

Posted on Feb 22, 2008

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Hi,

It can be attempted in several ways.

  • Using a manufacturers backdoor password to access the BIOS
  • Use password cracking software
  • Reset the CMOS using the jumpers or solder beads.
  • Removing the CMOS battery for at least 10 minutes
  • Overloading the keyboard buffer
  • Using a professional service
  • Posted on Feb 22, 2008

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    Booting


    It sounds as if this is a BIOS password request.

    Has anyone been changing setting in the BIOS recently?

    Occasionally, static or electrical interference can cause a BIOS password to reset to it's default.

    Bypassing the BIOS password is not easy, but is possible. First of all, I would suggest you try some of the common manufacturers default passowrda. You can find lists here and here.


    Failing that, there are software programs available to recover/reset lost BIOS password or you can manually reset the BIOS. Details of how you do this are here and here.

    If you are not 100% sure what you are doing, I would not advise you to reset your BIOS. There are setting in here that you will need to set in order for your computer to work properly. Wrong values could prevent it from working at all, or could even cause permanent damage.

    Google for 'reset bios password' - You'll find lots more information...

    Hope this helps,

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