Latest LQ Deal: Linux Power User Bundle
Go Back > Forums > Linux Forums > Linux - Hardware
User Name
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?


  Search this Thread
Old 04-06-2008, 09:36 AM   #1
LQ Newbie
Registered: Dec 2007
Location: Nakuru, Kenya
Distribution: fedora
Posts: 13

Rep: Reputation: 0
Bios Password Locked Me Out

Does anyone know how to bypass/crack BIOS password of a Toshiba Tecra?
A friend of mine locked himself out and now cannot boot his machine!
Old 04-06-2008, 09:50 AM   #2
Registered: Jul 2004
Distribution: Arch, Debian sid, Kubuntu, Slackware 11
Posts: 324

Rep: Reputation: 30
Have you tried to remove the mobo battery for some hours? In some cases it will flush the stored pwd.

Some motherboards though have other types of technologies to store passwords (for example EEPROMs). In that case you will have to destroy the EEPROM chip itself (by short-circuiting it) to remove the password. You will not be able to set a new password on it again though afaik.
Old 04-13-2008, 09:07 AM   #3
Senior Member
Registered: Dec 2007
Location: In front of my LINUX OR MAC BOX
Distribution: Mandriva 2009 X86_64 suse 11.3 X86_64 Centos X86_64 Debian X86_64 Linux MInt 86_64 OS X
Posts: 2,369

Rep: Reputation: Disabled
Some mobo has two battery to backup the BIOS a small one and bigger one.
And even some times the backup is done with capicitor
So some times it is puzzle to find it
Mostly you find it nearby the BIOS

all the best
Old 04-17-2008, 11:25 AM   #4
Senior Member
Registered: Jan 2008
Distribution: Arch/Slackware/Knoppix
Posts: 1,781
Blog Entries: 14

Rep: Reputation: 278Reputation: 278Reputation: 278
And sometimes there's a jumper to clear the memory and reset the CMOS to defaults; usually on the motherboard specs in the manual...
Old 04-20-2008, 03:24 AM   #5
Senior Member
Registered: Jun 2007
Location: E.U., Mountains :-)
Distribution: Debian, Etch, the greatest
Posts: 2,546

Rep: Reputation: 57
there is certainly a jumper to clear the memory indeed of the motherboard. It s very frequent.

Would you still have the manual of the machine ?
Old 04-20-2008, 07:11 AM   #6
Registered: Aug 2002
Posts: 16,025

Rep: Reputation: 1850Reputation: 1850Reputation: 1850Reputation: 1850Reputation: 1850Reputation: 1850Reputation: 1850Reputation: 1850Reputation: 1850Reputation: 1850Reputation: 1850
From the Toshiba website the password can only be reset by a technician. However, from searching the web the answer depends on the model number. Some were reset by shorting particular jumper pins, some by using a modified floppy boot disk and some by a special parallel port dongle. Tecras appear to use shorting pins but again the procedure depends on the model and may not be as simple as clearing CMOS memory.

luckily, I have not had the opportunity to find out how easy or hard it is to actually reset the password.
Old 04-20-2008, 12:19 PM   #7
Senior Member
Registered: Jun 2007
Location: E.U., Mountains :-)
Distribution: Debian, Etch, the greatest
Posts: 2,546

Rep: Reputation: 57
I hope a pro can help you ... otherwise you'll have to open the notebook, that's always risky when one hasnt much time/patience/experience...


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 Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
When session locked by kde screensaver, password not recognised vdemuth Slackware 7 12-12-2007 11:45 AM
the user/password screen locked me of arnon Linux - Newbie 2 12-31-2006 09:21 AM
Locked screen and password stopped working Catheryn Smoll Member Intro 2 03-30-2006 10:24 AM
Booting linux from a locked BIOS windows laptop sooty69 Linux - Newbie 5 09-12-2005 06:00 AM
How to get a list of users with their password status (expired, account locked...)? ricky_ds Linux - General 6 02-28-2005 09:53 AM > Forums > Linux Forums > Linux - Hardware

All times are GMT -5. The time now is 07:24 PM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration