Question about IBM ThinkPad T40 2373 Notebook

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I'm trying to clear the bios password on my girlfreinds thinkpad t40.... I've removed the cmos battery and was going to leave it out for an hour or so ....... will this work?

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An easier solution is to use a backdoor password for your laptops' model to clear out the bios password. For IBM, the backdoor password is merlin

Posted on Dec 03, 2008

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Toshiba satellite pro u400-130 bios password


  • The CMOS is, in basic terms, the part of the motherboard that stores the BIOS settings. To remove the BIOS password from your Toshiba laptop, your best option is to forcibly clear the CMOS.
    To clear the CMOS, you must remove the battery from your laptop and leave it out for at least 30 minutes to an hour. The way to remove the battery from your Toshiba will largely depend on the model. A common way to remove the battery--particularly with newer models--is to release the battery lock on the bottom of the laptop, while sliding the accompanying tab over to the side. This will pop the battery out from its tray so that you can then pull it out all of the way out.
    Before you remove the battery, turn off the laptop and remove the AC adapter. Otherwise, you could end up harming yourself or the laptop components. You must also ground yourself to prevent damaging the laptop with static electricity.
    After about a half an hour or more, return the battery back to its tray and lock it into place. Power on the laptop. The computericon1.png, ideally, should no longer ask you for a BIOS password.
    It's important to keep in mind that resetting the CMOS means that all of your BIOS settings will be reset to factory default. Also, sometimes you may need to leave out the battery for much longer than an hour to reset the password.
  • If resetting the CMOS doesn't work, then your next bet is to try using a backdoor password. A backdoor password is basically a password that manufacturers include with the BIOS so that technicians can access the computersicon1.png that people send in for repair. An example of a Toshiba backdoor password is, unsurprisingly, "Toshiba." When the BIOS prompts you to enter a password, entering "Toshiba" may allow you to access your PC and clear the old BIOS password. Another option is to hold the left "Shift" key down while booting.

Jan 26, 2013 | Toshiba Satellite Computers & Internet

1 Answer

I need to rest password in bios


Hi,
Removing the RTC battery and leaving it uninstalled for 5 or more minutes causes all passwords and CMOS settings to be cleared. BIOS password can be removed by temporarily disconnecting/ removing the RTC/ CMOS (Coin-cell) battery from the motherboard.
Disconnect the coin-cell battery from the system board and it will reset the BIOS to its default setting and the password would be gone.
Please Refer to Page 29, 106 & 79 of the REPAIR MANUAL IBM T40 for Battery removal, keyboard removal and RTC battery removal instructions.
The Backup Battery (RTC, CMOS) is located under the keyboard. So you have to remove the keyboard to access the battery. The above Manual from IBM shows the exact method/ instructions and pictures for laptop dis-assembly for the purpose.
If you are comfortable with working inside such electronics, you can't do it yourself, or else you may seek help from local laptop service professional.


Hope it helps! Good Luck! Thanks for using Fixya!
CreativeTECH

Jun 21, 2011 | IBM ThinkPad T40 2373 Notebook

1 Answer

I am removed my cmos battery but still my bios password not cleard How can i reset my bios paasword.


I believe the CMOS battery must stay disconnected for 24 hours before the BIOS password will clear.

Mar 30, 2011 | IBM ThinkPad R51 Notebook

2 Answers

Need to get past the bios password on my thinkpad T40. What can I do?


write it down all the bios settings. and remove laptop keyboard by removing screws back side of the laptop (small embosed picture indication remove those screws) and just lift the keyboard and search for cmos battery, see below picture , just unplug the battery and keep unpluged for minuite or two. and connect the battery. fit all the opened cover and restart . best of luck

aaarwind_6.jpgaaarwind_7.jpg

Jan 15, 2011 | IBM ThinkPad T40 2373 Notebook

2 Answers

How can i remov the hp compaq nx6310 laptop bois password


If you didn't set it or do not know it then the entire laptop will have to be dismantled to remove the cmos battery for one hour to cancel that password.There is no easier way.

Oct 16, 2010 | HP Compaq nx6310 Notebook

2 Answers

I have an acer 5720 laptop and it has decided there is a bios password and it wont boot at all, i cannot discconect the cmos battery as soldered on, Is this something you can fix??


Here is the data that I have found: In order to have the BIOS or hard disk password removed (This include any biometric security), the notebook will need to come in to our repair depot for password removal. This service is not covered by warranty and unfortunately there is no other recourse to remove a BIOS or HDD password from the notebook. The flat fee for BIOS password removal is $100.00 US dollars plus tax. If it is a BIOS or HDD password and you would like us to service it for you, please contact our telephone technical support line at 1-800-816-2237. Hours of operation are 7am-9pm CST Monday-Friday and 8am-5pm CST Saturday and Sunday, excluding holidays.

Jan 15, 2010 | Acer Aspire 5720 Notebook

3 Answers

Remove Bios Password ibm t40


ON YOUR WINDOWS ENVIRONMENT open command prompt, or MS DOS prompt type this:

debug
o 70 2e
o 71 0
q

Then restart...

Oct 21, 2009 | IBM ThinkPad T40 2373 Notebook

1 Answer

I CANT GET MY IBM THINKPAD TO UNLOCK


it depends on what you want to unlock:

for the BIOS, just remove the battery for 24hours then the BIOS will reset / else have the BIOS battery removed for at least 1 hour.

for more information:

http://sodoityourself.com/hacking-ibm-thinkpad-bios-password/

Oct 16, 2009 | IBM ThinkPad T40 2373 Notebook

1 Answer

Need help t40 bios.lost my password can i buy a disc?


take out the cmos battery and put it in again.let me knw if that works

Sep 20, 2009 | IBM ThinkPad T40 2373 Notebook

4 Answers

Forgot BIOS password, so please help to disable this on fujitsu S7110 lifebook.


There is probably a jumper but if you disconnect the cmos battery and leave it for a few hours or overnight it'll have the same effect. Make sure you take the main battery out too.

Jul 31, 2009 | Lenovo ThinkPad X61 Notebook

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