How to unlock BIOS password for my laptop?



Dear Expert, I would like to know how to unlock BIOS password for IBM/Lenovo laptop - my laptop was little issue in its fan (Fan error) thus replaced it and once try to Switch on the laptop - it is asking BIOS password to go for set up screen or OS. The reason showing in the Laptop is "Error code - system tampered with"  
  
How to solve the issue since it is not accepting even old password of BIOS? Do I need to change mother board or dispose it though I tried via CMOS set up?
Member, below are the best steps to unlock BIOS password in a Lenovo desktop or laptop.  
  
**For computer**  
1. Turn off your system and ensure its unplugging.  
  
2. Now, open the CPU case.  
  
3. There on, look for a circular silver metallic object. It is the CMOS battery.  
  
5. When you find it, remove it gently and reinsert.  
  
That is all, your system BIOS password will no more appear before you. Happy boot!  
  
To unlock the forgotten BIOS password in a laptop is a bit tough to do but not impossible. Go through the reference URL below and learn the way for how to unlock BIOS password in Laptops.   
For
re-flash bios using usb stick if you can get that far.
if not reset option and steps like clearing cmos and pins.?
new mobo or try manufacturer.. We are terribly sorry but CCM cannot help you to recover your lost password, 
  

  
Please refer to the following FAQ regarding your phone's unlocking: 
  

  
[http://ccm.net/faq/1038-why-ccm-does-not-help-to-unlock-mobile-phones-sim-cards](/faq/1038-why-ccm-doesn-t-help-unlock-mobile-phones-or-sim-cards)
  

  
Regards Hi anil940,
  

  
Kindly check the below mentioned link to know the scope of support for password issues on this website: 
  

  
<https://ccm.net/faq/9201-why-ccm-doesn-t-recover-lost-passwords>
  

  
Check the below mentioned How-To link for the "MICRO SD card - Lost password" fix: 
  

  
<https://ccm.net/faq/4154-lost-password-to-microsd-card>
  

  
Do reply with results. that is where i'd start as well. osi...
so:
1. physical link (maybe check the patch panel and the cabling that's involved in connecting to the computer, maybe swap cables and try a usb to ethernet adapter to rules the nic out.
2. data link - check the switches and switchports on the way. maybe try to use different portts
3. network - most likely not an issue if all the other computers are working fine...
etc.
but this is pretty much it: Power off the router. 


Get yourself a copy of TeraTerm (it is old, but good)  

Connect your PC serial port to the CON port on the router and run TeraTerm, configured for the serial port, at 9600, 8 bits, no parity.


Press return a few times, and make sure you can see the output from the router.


Power off the router.  

Power it back on again, and when you see something, send a ‘BREAK’ by pressing Alt+B  

The router shoud return a boot> prompt.  

Type 


<b>config-reg 0x2142</b>


Then type


<b>boot</b>


Let the router load, and it will come up with the prompts asking if you want to use the configuration utility.  

Say <b>NO</b> to this.


Type the following when it gets to the > prompt


<b>en  

copy start run</b>  

{press return to the prompts from this command}


When it has finished


<b>show run</b>


Check and see if it has an ‘enable password’ command or an ‘enable secret’


<b>conf t  

config-reg 0x2102  

enable secret {whatever you want as a password}  

no enable password</b> (if it has one of these)  

<b>end  

wr</b>


And the password is changed. 


You should reboot to make the config register change, and also to confirm the password has changed correctly. 


I did all this from memory, so if it doesn’t work, then post here and I will double check, or someone will point out my stupid mistake 😉 see this link for account handling:https://support.sonos.com/s/article/3427?language=en\_usyou will find help for changing accounts, resetting passwords, etc. the softest way to power down the system is using the gui or:

systemctl poweroff

the second one is:

shutdown --halt now

and then pressing the power button lightly.

for more ways of shutting down your computer, see this excellent cough, cough article:

[image]

[how to reboot / t…](https://archived.forum.manjaro.org/t/how-to-turn-off-your-frozen-computer-reisub/124762/1) you can try a factory reset. push and hold the reset button for 15 seconds and then release. the button should be located on the back of your gateway/modem/router, and you will need a ballpoint pen or toothpick. you should then be able to access your gateway using the standard means with the passwords listed on the label on the gateway.  \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_how can you be in two places at once, when your not anywhere at all?i really want to become a procrastinator, but i keep putting it off.there are three kinds of people, those that can count, and those that can't.'our great democracies still tend to think that a stupid man is more likely to be honest than a clever man, and our politicians take advantage of this prejudice by pretending to be even more stupid than nature has made them.' :bertrand russell pat, sorry to read about your notebook issue.  be assured that i have been monitoring this post and see that you have received very helpful input.  if you're not able to duplicate the memtest86 hit, you may want to scan for "infections" as andre s. recommends.  however, along with malwarebytes, i would also run tdsskiller and combofix.   after doing this and the laptop still freezes, you may want to contact hp's excellent elite premier support team at 866 625-1175, especially if this model is still under warranty.  you also may want to pm me with the product number, serial number so i can get a case started for you or so we can discuss some hp options if out of warranty. a quick fix is to go into the "device manager" Start-settings-control panel-system-device manager and right click on your keyboard and select delete. when it's deleted restart your pc. You will not be able to use your keyboard until it is reinstalled by your computer let it start up and you will see a little come up that wil say something like found new hardware or found new keyboard. after this you should be able to use as you used to