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T43 cmos battery removal - IBM ThinkPad T43 Notebook

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Error 0271


Is your date and time correct? You may need a new CMOS/RTC battery? Does the Laptop loose time/date/year, when you plug back in, after being unplugged without battery installed?

May 12, 2013 | IBM ThinkPad T43 Notebook

1 Answer

When turning my laptop on all I get is a black screen with a lock symbol in the upper left corner, requiring a password


Ufortunately there is no easy solution for this problem, the bios is password locked preventing window startup. Removing the main and the cmos battery will not work because it retains the information regardless how long the power has been removed. If you are the original owner you can contact IBM to have your password remove for a fee, the other possibility is to check out ebay sellers who offer this service, but be carefull some don't deliver as promised. The only other approach is change the motherboard or replace the eprom chip ( 8 pin ic )

Aug 23, 2011 | IBM ThinkPad T43 Notebook

1 Answer

My laptop have got biolock password and i forget my password so tell me how to unlock biolock in ibm model t43


If you are referring to the bios password, you can reset it most times by removing the cmos battery, usually a silver nickel cadmium battery on the motherboard. Remove it and then replace it, this resets all CMOS settings.

Apr 01, 2011 | Computers & Internet

1 Answer

I am working on a Lenova t43 laptop for my school, which has been locked by a previous tech. I removed the cmos battery and left it out over night, but it did not erase the locked cmos. Is there anything...


Traditionally with ThinkPads:

1. The BIOS password can be reset with the CMOS.
2. The Supervisor password cannot.
3. The HD password cannot.

If it's the harddrive that's locked you will have to replace that. If it's the Supervisor password you need to replace the system board which kind of defeats your purpose.

Sep 11, 2017 | Lenovo ThinkPad T43 Notebook PC

1 Answer

Ibm thinkpad t43 wont boot


Remove the battery, and unplug it from the wall. Leave it for 30 seconds and then try turning it on with just the power plugged in. So without the battery. Best of luck, Ravi Shanghavi, Ottawa

Aug 19, 2010 | IBM ThinkPad T43 Notebook

1 Answer

Power-On Password reset and SVP


The supervisor (SVP) password is stored in a chip called 24RF08.It can not be reset by disconnecting the BIOS battery or shorting any jumper.

Nov 24, 2009 | IBM ThinkPad T43 Notebook

4 Answers

I cannot reboot, the thinkpad is locked. how do i


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/

Oct 11, 2009 | IBM ThinkPad T43 Notebook

1 Answer

IBM Thinkpad T21 2647 8AU remove Administrative password


to remove the administrative password follow this link for all about removing admi password its free check it
http://www.kellys-korner-xp.com/win_xp_passwords.htm

then for bios password try to remove the cmos battry for while then put it back for some systems the password may not go off. in that case, the password is stored in a chip the 24co2 ic which i can not locate the actual position. thank u
n plz tell me the extend uv gone if this helps.
bye

May 26, 2008 | IBM ThinkPad T43 Notebook

2 Answers

I FORGOT MY laptop HP PAVLION 4000 SEREIS BIOS PASSWORD


see if you can locate a jumper beside the cmos Battery on the system board...
If yes, you will notice that its having three pins and has the inscription "1-2 cmos" , "2-3 clear"
If yes then remove the jumper from "1-2" to "2-3" and wait for about 5 to 10 seconds to clear the CMOS battery.
Replace the jumper to "1-2" and enjoy your default settings...

Get back to me if there is any problem....

Thanks..

Jan 08, 2008 | IBM ThinkPad T43 Notebook

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