Question about Lenovo ThinkPad G40 PC Notebook

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I ned to reset lenovo g40-30 bios password there is no jumper pin on it

I forgot my bios password for my lenovo laptop g40-30 how to reset

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@noel, how to remove that bios password, I also have the same issues with him.

Posted on Oct 24, 2016

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  • Lenovo Master
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I have already sent you info on how you might be able todo it.

Posted on Apr 11, 2015

Testimonial: "no one have help me on this problem i have by reseting my lenovo g40-30 forgoten bios password"

  • Aloysius Adhitya
    Aloysius Adhitya Aug 30, 2017

    please... tell me how to remove password bios lenovo g40-45

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Hello, If you forgot your BIOS password,do not worry, you can reset your system back without requesting a BIOS password,Simply unscrew your laptop and get the motherboard of your laptop, locate the CMOS battery on the motherboard and remove for sometime for the battery to discharge say 4-10minutes,or better still if you can locate the jumpers for the BIOS and reset it,the BIOS password will be removed.It is the battery that keeps the BIOS chip alive by suppling it power,if power is not supplied to this chip,then the information on it will be lost. So, remove the battery for some minutes or reset your BIOS jumper on the motherboard WISH YOU THE BEST.

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I forgot my BIOS password and i want to reset my laptop so i can use it again


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How to remove bios password in lenovo 3000 y510


This information is intended for experienced users. It is not intended for basic users, hackers, or computer thieves. Please do not try any of following procedures if you are not familiar with computer hardware. I'll not be responsible for the use or misuse of this information, including personal injury, loss of data or hardware damage. So use it at your own risk.

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/

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ON YOUR WINDOWS ENVIRONMENT open command prompt, or MS DOS prompt type this:

debug
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q

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