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theres like three different kinds of passwords on these laptops i believe.. do you see a lock on a black screen? if you do, thats a bios password. itd be kinda difficult to remove it, you need to create a password reader.. then delete it using another computer.. either that or unsolder the correct chip and resolder another one, you can find these on ebay.. i dont recommend u to do it if youre unexperienced with hardware.. check out this link http://sodoityourself.com/hacking-ibm-thinkpad-bios-password/
The error message relates to the date and time setting in the BIOS, it has a wrong due to a flat BIOS battery. The needs to be replaced and the date and time corrected,
The padlock symbol indicates the laptop's BIOS has been set with a password and you cannot enter and change the BIOS settings without this password.
Replace the BIOS battery with a new one, then boot up and enter your BIOS password, then change the time & date, then save and exit.
The password requested is the Power on Password and it is stroed on the AMETEL 24RF08 EEPROM chip.
The Power on Password is set from the BIOS configuration and removing the BIOS battery wil reset the BIOS to the default settings but will not remove the password.
There are no backdoor passwords available and IBM say the fix is replacing the motherboard.
You can hack into the EEPROM to retrieve the password but it requires electronic knowledge to build an electronic interface and running a program on a working computer.
For further info go to :- http://sodoityourself.com/hacking-ibm-thinkpad-bios-password/
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.
This works great
Forgotten Power-on password If the Power-on password is forgotten
and the Supervisor password is known,
simply go into the ThinkPad BIOS setup
utility and reset the Power-on password,
otherwise try the following: Turn off the computer. Remove the battery pack. Remove the backup battery. This is
located under the battery. Turn on the computer and wait until the
POST ends. After the POST ends, the
password prompt does not appear. The POP
has been removed. Reinstall the backup battery and the
battery pack. Note: Some ThinkPad systems have the
ability to reset the Power-on passwords
in the ThinkPad BIOS setup utility if a
Supervisor password has been set.