Question about Lenovo G530-444635U PC Notebook

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How to bypass lenovo 4446-35u bios password - Lenovo G530-444635U PC Notebook

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  • Master
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Hello ,
If you or some one already given the bios password. It can not be reset the bios remove the cmos battery.There is another solution for reset the bios.
But it will be solve for few models.
http://repair4laptop.org/laptop_and_notebook_bios_password_reset.html
Try from here you have same bios company ,just try it.
http://www.technibble.com/how-to-bypass-or-remove-a-bios-password/

Sorry to say you it will be damage.Because there are no solution for lenovo,because it s the BACKDOOR PASSWORD.

Posted on Dec 29, 2010

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  • Lenovo Master
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This is problem that you don't want to see in the IBM Lenovo, there is an epprom that stores the password in an eight pin ic and the only solution I found was to change the epprom. But if you go to www.ebay.com type in laptop and click, next type bios password locked this will bring up a list of software. There is one seller that if you send the laptop to him he claims he can fix it for a price. The chip must be flashed in order to clear the password and that requires taking the complete laptop apart.

Posted on Dec 29, 2010

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bronk50
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SOURCE: bios password for Lenovo T400

Restart your computer repeatedly tapping the f8 key to enter safe mode while the screen is black once in safe mode where the only things working will be your keyboard and mouse allowing you to attempt to repair your computer

As the computer is booting repeatadly press the F8 key as the computer is booting


If done properly the user should get to a screen similar to the below screen.

Select the option for Safe mode command prompt only

Windows Advanced Options Menu
Please select an option:

Safe Mode
Safe Mode with Networking
Safe Mode with Command Prompt

Enable Boot Logging
Enable VGA mode
Last Known Good Configuration (your most recent settings that worked)
Directory Services Restore Mode (Windows domain controllers only)
Debugging Mode

Start Windows Normally
Reboot
Return to OS Choices Menu


Use the up and down arrow keys to move the highlight to your choice.


select safe mode with command prompt


Then type at the C:\> prompt: type

DEBUG

and hit Enter. You'll see a dash (-) at the DEBUG prompt. Now type:

o 70 2e

which will show as -o 70 2e at the DEBUG prompt. Hit Enter. Then type:

o 71 ff

and hit Enter. Finally type:

Q

and hit Enter one last time to quit DEBUG back to the C:\> prompt.
Now you're ready to reboot your PC, and press the appropriate key or key
combo (look it up in your motherboard manual if you don't know it) to access
your BIOS Setup.


Youll notice the password is gone.


If this fails try typing


At command prompt type debug
you will get a - prompt where you can type the following (<enter> means press enter, not type enter*)

A <ENTER>
MOV AX,0 <ENTER>
MOV AX,CX <ENTER>
OUT 70,AL <ENTER>
MOV AX,0 <ENTER>
OUT 71,AL <ENTER>
INC CX <ENTER>
CMP CX,100 <ENTER>
JB 103 <ENTER>
INT 20 <ENTER>
<ENTER> just hit enter on this line
G <ENTER>
Q <ENTER>

Basic BIOS password - works 9.9 times out of ten

If this fails you will need to


Select safe mode with networking to download

you could download all of these or just one save them to a usb drive for later use if one fails to remove the password


http://www.tech-faq.com/reset-bios-password.html


At some stage you might need to press Ctrl+Enter rather than just Enter if on a Dell Latitude E5410


http://majorgeeks.com/CmosPwd_d239.html

A CMOS BIOS password recovery tool

Editors note: This tool should only be used by experienced computer users.


Please see the enclosed read me if you would like to run it from Windows.

Failure to follow instructions (from Windows) will cause your anti-virus to flag this as a virus.


Hope this helps.

Posted on Nov 28, 2012

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