Go Back   Tech Support Forum > Hardware Support > Laptop Support

How to remove BIOS password on IBM T23?

This is a discussion on How to remove BIOS password on IBM T23? within the Laptop Support forums, part of the Tech Support Forum category. I replaced a dead fan on an IBM T23 Think Pad, type 2647. To do so requires removal of the


Closed Thread
 
Thread Tools Search this Thread
Old 06-04-2008, 04:55 PM   #1
Registered Member
 
Join Date: Jun 2008
Posts: 2
OS: XP



I replaced a dead fan on an IBM T23 Think Pad, type 2647. To do so requires removal of the backup battery, per IBMs field manual.

After putting it all back together, the system now requires a boot password.

No password was EVER set by the user so no password is known to put in.
It appears pulling the cmos battery reset the BIOS as expected but now it thinks there is a password.

I have tried removing the batteries again and booting from AC with no luck

Any ideas? IBM says the only way is to replace the motherboard.

__________________
pmillerjr is offline  
Old 06-04-2008, 05:08 PM   #2
TSF Enthusiast
 
TriggerFinger's Avatar
 
Join Date: Jan 2008
Location: USA
Posts: 12,250
OS: XP SP3, PCLinuxOS2007, Win 7 Ultimate


Send a message via MSN to TriggerFinger Send a message via Yahoo to TriggerFinger

hi,

hmmm that is quite strange. you said initially it has no password but after putting back it back together (backup battery installed), it now asks for one?

my guess is (and i may be wrong) there might be already an existing password and resetting the CMOS did not reset it. or another way to explain it is a presence of a Security Chip (not so sure about this on a T23). IBM/Lenovo website can help you with this. check the original specs of the laptop (based on model/type and serial number) if it has a security chip.

again best help you can get is from IBM. i believe they will just ask some security related questions and then give you password that works.

other than that, i believe it is against forum rules to give any other advise.

TriggerFinger is offline  
Old 06-04-2008, 05:28 PM   #3
Registered Member
 
Join Date: Jun 2008
Posts: 2
OS: XP



I beleive this is a subset of the known issue with the same problem after a receint BIOS update. Uodating the BIOS can create a random SVP on the TP. As I am unable to get that far in the boot process, I cannot see what BIOS version is in place.
__________________
pmillerjr is offline  
Old 06-04-2008, 05:33 PM   #4
TSF Enthusiast
 
TriggerFinger's Avatar
 
Join Date: Jan 2008
Location: USA
Posts: 12,250
OS: XP SP3, PCLinuxOS2007, Win 7 Ultimate


Send a message via MSN to TriggerFinger Send a message via Yahoo to TriggerFinger

Quote:
Originally Posted by pmillerjr View Post
I beleive this is a subset of the known issue with the same problem after a receint BIOS update. Uodating the BIOS can create a random SVP on the TP. As I am unable to get that far in the boot process, I cannot see what BIOS version is in place.

try tapping F1 when IBM logo appears to get into BIOS settings. you can see the BIOS version there.
TriggerFinger is offline  
Old 06-04-2008, 07:29 PM   #5
dai
TSF Team, Emeritus
 
Join Date: Jul 2004
Location: west australia
Posts: 74,478
OS: win 7 32x 64x rtm



if resetting the cmos did not fix it we can offer no futher in depth help under the forum rules
there can be 3 passwords on a lenovo,only the bios supervisor password can be reset by a cmos reset any other has to be done by lenovo
the second one requires a motherboard fix from them
the 3rd is a h/drive password which requires lenovo to replace the h/drive
these are security features built in to disable a stolen laptop and render it useless
thread closed

__________________
dai is offline  
Closed Thread

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is on
Smilies are on
[IMG] code is on
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Post a Question


» Site Navigation
 > FAQ
  > 10.0.0.2


All times are GMT -7. The time now is 04:55 PM.


Copyright 2001 - 2014, Tech Support Forum

Windows 7 - Windows XP - Windows Vista - Trojan Removal - Spyware Removal - Virus Removal - Networking - Security - Top Web Hosts