Question about IBM ThinkPad T23 2647 Notebook

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T23 SVP gone

After changing the back-up battery on the T23 it booted-up again but....asking for a supervisor password which I can't remember anymore. Is there hope I can still use my T23 again. Please let me know if there is a workaround.
By the way I have the 2648 model
Best regards, M@x

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  • Maxs Feb 22, 2008

    Thanks thespark,
    I've solved it after accidentally the battery emptied itself and automatically the T23 went to sleep when I was still guessing for a supervisor password. After plugging in the power again to reboot using F12 to start-up from CD (Linux) to avoid the password => no luck again it kept on asking to change the time/date in the BIOS which I couldn't enter due to the forgotten password.
    Space (no reaction) enter => password not accepted
    enter => yes it worked!?! I was in the BIOS.
    Went to passwords section to clean/change all password => not possible however all passwords were disabled (YES!!) go to restart and no possibility to change anything as all was blocked. That should be a problem as all passwords were disabled anyway I thought. I've rebooted again as expected the question to change time/date hit enter to go into BIOS worked this time however Supervisor password was enabled again?!? and nothing could be changed to save. Rebooted F12 to alter boot still question to change time/date. I've used esc twice and it started form the selected boot options (HD) change time in the OS and rebooted. At last it started up as normal and is still working good in fact I've upgrade the memory with 512mb extra to work quite a bit faster. Next job get Linux working on a T23.

    If you don't try, you don't fix it!

    Best regards,
    M@x

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  • 73 Answers

Ah! Passwords.... Do you see anything about WINDOWS before it ask? Then its a windows password and you can go hunt all over filesharing land for a PE disk, preferably a Winternals PE disk.. or be nice and buy one.. On a borrowed computer of course..

Nothing about windows before it asks for a P/W? Oh goody bios password... Much more trouble.. On IBM machine really nasty... Your HD is probably locked too.. You can spend hours on google after this, but you may have a brick.. or be looking at building a custom board with instructions from this guy in Australia, hooking teeny tiny wires to a chip on your laptop baord, running a program and sending the result and $25 to him..
IBM laptops=great bloody bios password security.. Oh.. Co. up in Canada does it for $400, after proof you own the thing..

Good hunting..

Posted on Feb 16, 2008

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I am forget my bios password on my laptop ibm think pad t23 , i put 3 ways password (pop, hdp,svp) how can i fix it please :(


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The IBM Thinkpad has a very strong security system.

If you are seeing a lock symbol when booting then somebody has set the supervisor password. If you can't remember it or guess it (try "password", "admin", "pass", etc) then you need to find the person that set the supervisor password.

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Hi there, sorry to hear you are having problems. Please follow this How to Reset an IBM ThinkPad Power On Password Using Hardware

If you cannot boot the ThinkPad, you will have to reset the IBM ThinkPad password via hardware.

If only the power-on password is set, do the following to remove the power-on password.

  1. Power off the computer
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  3. Short-circuit the two password pads or put a jumper on the contacts to short the circuit.
  4. Under the short-circuit condition, power on the computer and wait until the POST ends. After the POST ends, the password prompt does not appear. The power-on password is removed.
  5. Reinstall the DIMM cover.

If both the power-on password and the supervisor password are set, do the following to remove the passwords:

  1. Power on the computer by pressing and holding F1.
  2. Enter the supervisor password. The Easy-Setup menu appears.
  3. Click on the Password icon.
  4. Click on the Power on icon.
  5. Enter the supervisor password and press the Space bar.
  6. Press Enter twice.
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From your hardware maintenance manual:

Supervisor password: A supervisor password (SVP) protects the system information stored in the BIOS Setup Utility. The user must enter the SVP in order to get access to the BIOS Setup Utility and change the system configuration.

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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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