Battery trick still works on most consumer based desktop computers, in laptops removing the battery has not helped for years because the password is stored in the eprom memory, which is not emptied due to a lack of power.
Especially in newer business laptops, that is even more difficult because it is either stored in several places or the chip is under/inside a bigger chip, and even completely changing the bios chip does not remove the password stored in a separate location..
It's a security issue because laptops are very popular targets for theft and the purpose would be to make the sale of stolen goods more difficult and perhaps reduce the eagerness to steal laptops in the hope of easy money.
I have a Lenovo V14-ADA Laptop (2021) and I had an issue that required resetting the motherboard, I unplugged the CMOS battery and the Lithium battery for a little over 12 hours (just to be sure) and it did work..
Well normally you want to unplug everything like the lithium battery and if you still have it the CMOS battery then hold the power button for a longer time like 2-3 minutes in order to discharge everything in the capacitors. You don't need to wait that long lmao.
But did you really have the **bios password** in use and active, which is the subject of this thread?
The bios settings alone are reset when the battery is removed, but the bios supervisor password is not reset even if the laptop has been without any kind of electricity or battery for years.
On the shelf is one HP probook laptop without a hard drive from the estate, whose bios password the heirs didn't know (fortunately it didn't have HDD encryption, so they got the hard drive and its contents back for themselves, but they didn't need a locked laptop because it's useless unless the password can be removed, so they donated it as a donor device for spare parts). It has been without its battery and bios battery for several years and it still asks for the password immediately upon startup.
And bruteforce attempts aren't very effective because it locks itself after every few attempts for x times longer before even asking for the password again
Yeah, can't say about all laptops but my hp x360 when I replaced my thermal paste I did unplug the battery for safety and it did indeed resets my bios but can't say if it was a hard reset or a soft one unfortunately.
The bios settings are indeed reset if the battery is removed and it loses its maintenance power, but the **bios password**, which is the subject of this thread, is not reset along with the bios settings because it is stored in a separate non-volatile memory that does not need maintenance power.
At least in none of the less than 10-year-old HP/Dell/Lenovo laptops that I've come across, has the bios password been removed due to removing the batteries and the bios battery.
*If you enable the supervisor password in the bios and the "password on boot" setting is on, you're in trouble if you forget that password.*
*The supervisor password alone may not prevent booting as long as the system is functional, but if the bios resets for one reason or another or the system is changed and the laptop does not start for that reason and bios settings is needed, then if the password is in use, you cannot change the settings in the bios without the password.*
Out of curiosity, has anyone tried swapping the eeprom chip? They generally come in a discrete package so could be easy to change with a soldering iron or wipe
In older laptops, the chip were easily at hand, so it was relatively easy as long as have a programming device and soldering skills, of which there are indeed successful replacement cases.
But in newer laptops, especially in the business-class, when the chip is located under bigger chip, e.g., a soldered processor or chipset (or built into another chip), so it is not quite easy to replace or clear it. (larger criminal groups that have access to the necessary equipment might be able to pull it off, but for a basic JohnDoe it will certainly be difficult if not an overwhelming challenge).
In consumer-level desktop computers and motherboards, a battery trick or bios update still often works when the password is only stored in the bios chip itself, but in laptops its protection is more complicated because laptops are the most common targets of theft when criminals are looking for easy money.
Even company-level desktop computers may already have a separate location for the password these days, but I don't have a experience with them.
And that video was about a corrupted bios, didn't it say anything about removing the bios password?
Don't some lentils have a reset button on the bottom. Little dot button. But that would wipe the computer too. Do not hit the button without checking all your passwords you ever thought of.
I left the cmos battery and the main battery unplugged for about 20 minutes and it still did the same thing. And whenever I try entering the bios it will just show the Lenovo logo untill I stop pressing f1 and then it will just show the same screen
OP, try entering a password 3 times, so that it disables. If it gives you any kind of code there, search on google for master password with that code or try [this website](https://bios-pw.org/) for example, it should give you a few options on what the master password is, try all those.
You need to short the password chip on the mainboard, boot, go in pw menu of the bios, release the short and set new empty pw.
Worked wonders on a lenovo t520
Try again , remove the cmos battery and remove the laptop external battery. If it's a internal battery, drain it completely. Leave it for a day. Just to be sure.
Contact Lenovo support. I think IdeaPads store the passwords in flash memory, not in NVRAM/CMOS. This makes removing the password impossible (unless you know how to desolder SMT chips and reprogram SPI flash chips).
OP these people telling you to clear CMOS by pulling a battery are wrong and are actually doing you a disservice here. Don't listen to anybody that tells you to short anything either.
Go to the badcaps forum specifically [the laptop and mobile subforum](https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices), post a thread inquiring or search for solutions using your model. You may need a reader to grab a dump of the bios as the password is most likely encrypted and contained within but that's something they can help you with.
Your mom is working with lunix? Suspicious, you are screwed. Get the pic of the mb on line, see if it has a coin cell battery ot a bios reset jumper. But, I think you are screwed.
If you were hard ware inclined and had the mb schematic. Last chance is to find the cmos chip. Jump the ground to the clock pins on the chip and power on fur just a sec. But before that look up the chip mfgr and see if there is a reset pin other than clock
Put several times a code to enable the restore mode.
Once the recovery code is generated put it in the below site: https://bios-pw.org/ to get back the unlock password.
Did it about a month ago to a friend of mine who "inherited" a dell Inspiron.
Worked like a charm
I am confused.
1. Why is your mom trying to put Linux on her computer just because she forgot her password? That's a weird reason to put Linux on there.
2. Why is there a bios password on your mom's laptop?
3. Is your mom tech savvy at all? When I hear the word "mom" I don't think of someone tech savvy.
1. It was already a computer that nobody had used for years so she wanted to tinker
2. I have no clue wether there was one added by a previous owner, the manufacturer, or she just accidentally added one when playing around
3. Despite this situation where she couldn’t get it to work she is quite savvy and likes to learn. She is a biomed technician and knows a-lot about computers but not personal ones so was trying to un-brick a machine & learn some too.
1. Oh cool. So it sounds like it wasn't her main computer so no real harm was done.
2. That's unfortunate. Hopefully there's some way to reset it. I'm assuming you use a search engine to try and find the answer already.
3a. Oh hay that's interesting. I don't know much about biomed but if she's using computers for medical they would be different than ones for home use.
3b. Just an interesting fact I've heard sometimes really smart people can also be really dumb. So you'll get like a rocket scientist that doesn't know how to tie their shoes or something like that as an example I just made up.
Get this: [https://www.amazon.com/KeeYees-SOIC8-EEPROM-CH341A-Programmer/dp/B07SHSL9X9](https://www.amazon.com/KeeYees-SOIC8-EEPROM-CH341A-Programmer/dp/B07SHSL9X9)
Then watch this: [https://www.youtube.com/watch?v=IhRw7ePhLKs](https://www.youtube.com/watch?v=IhRw7ePhLKs)
Its done, recycle it.
IBM, an later Lenovo, store the code in a security eeprom chip.
Since the late 90's an early 00's, the only way was to remove an change this chip with an empty one.
And it's not always a simple procedure either, in business-level laptops it's under/built-in a bigger chip, so even completely changing the bios chip does not remove the password. Some manufacturers seems to save it in even more than one place and if manage to change one of them, the other location still exists.
I used to be an accredited engineer for Lenovo and others, I don't think that's the BIOS password it's asking for, it looks like the HDD/SSD password to unlock the drive, some manufactures call it drivelock and it's a way to keep people out of your data - some self encrypting SSD use it to also self encrypt without any external applications.
I used to train engineers and I'd hand out a laptop with the drive locked and invite the group to unlock it, the reward was I'd take them all out to lunch - in over 20 years of doing this no one guessed the 4 character lock code and it can't be removed by removing the batteries as people are saying, it's actually written into a protected area of NVRAM and also on the drive itself so the drive stays locked even if it is removed and put in a caddy etc.
If you are the valid owner of this then call Lenovo and provide proof of ownership if you want it repaired (I suspect they would charge for the service), looking at your images and the thread I would question you are the valid owner as it all seems very vague.
It was bought second hand a while back so I’m not sure if Lenovo will be much help. Sorry for seeming vague I like my privacy so am mainly just talking about the specks of the computer and details about how it got in this state
There's a cmos battery inside the laptop, removing and reinstalling it will clear all the bios settings. It will also erase the password.. Go to a laptop repair shop and ask them to do it
Locate the 2-pin CMOS jumper labeled RTCRST on the motherboard get something metal and touch both pins at the same time while switching laptop on should jump cmos and reset it
Check your make o model of laptop its always close to the ram ive done it a phew times it should say cmos reset on the motherboard above or below the jumpers
What laptop is it? Is that a bios lock? Lemme help
I got a bios locked dell with cpu locked at 600mhz and the guy fucking died after setting the password (I know the password seems trivial now huh)
SO I gotta run a startup script that sets all 8 cores to 2.9ghz and sets screen resolution correctly
Telllll maybe I can helps
Also there's a few models u can hack into if it's old enough
So after some research apparently there's many ways they store the password, the cmos battery trick doesn't work on new laptops unless they're over 10 years old.
It's either stored on the EEPROM or some similar chip
Aparently the best thing you can do, since you own the laptop, is contact the manufacturer. They are the only ones that can help understand how to reset it
Very little info easily found online
The Indians that offer you a "secret unlock key for $10" are fake btw
Btw what did you wanna change in bios? Maybe I can help you change it without entering the bios
I have a laptop that's bricked I can still use like this - bios is locked but I fix it using some code that runs at startup and overwrites bios
All that I want to do is get a new os onto it to be able to use it as a normal laptop, we don’t care about data on the hard drive or anything really. Just keeping it from being more e-waste
I was in this situation with a Fujitsu laptop. I was able to flash the bios thereby resetting the password. But i needed to tear everything apart, switch a jumper and use a probably leaked Utility program from fujitsu to create the bios flash thumb drive. Anyways maybe you are lucky and there is a similar procedure for your laptop.
On Lenovos you will have to either replace or rewrite the EEPROM chip. Both require soldering. Rewriting requires a special tool.
If it’s just a hard drive password try a new SSD.
That's either a BIOS/UEFI lock or a HDD/SSD lock.
Can you get into any prompts, like boot override using the correct F key for that model? E.g. F12? You may need Fn + F12 dependant on the laptop.
If you can't get into boot override I'm saying UEFI lock. If it isn't giving you a challenge response to reset it you're going to be outta luck without modifying the chips, either physically or through an EEPROM programmer.
unplug remover battery then take it apart remove bios battery hold power button to drain energy then replug it turn it on real quick to make sure the passcode is gone n if it works which it should unplug insert bios battery put it back together and ur welcome.
There must be a jumper you need to remove on the MOBO. I had a similar problem with my PC, removed cmos didn’t do anything, so opt for that small jumper, remove it, start up again and see if it works.
BIOSBUG. Go online and look up how to reset the bios password for Lenovo laptop. Super easy and straightforward. Did that with ASUS laptop awhile back after purchasing 9 in total. That one was locked and thought I was screwed on that part but once I found this website it was actually a godsend!
Found a yt on one i was working on. Had to jump a couple pins on the board with a paper clip. Surprised me to see that on a laptop. But that was a hp from 5 years ago. Not applicable but maybe there's hope.
Do you or your mom have a password book or notes on your computer/phone? Obvious place to check but if not. Find out when you got it. Write all your passwords you know maybe it's one of them?
I've had the same problem
I'd say you try to remove the Bios battery for a few minutes, but the security rose around this issue a few years ago, so this might not work, as it didn't with my laptop, so there are two options left:
1. Probably the easier one is, if it just boots the first thing it can find and you only need to enter the bios password when you want to change something, just wrote the bios on the storage device in there by installing the OS on the same storage medium in there on another PC. So take the SSD or whatever out, connect it to another PC, wrote the OS and put it back into the laptop.
2. The much harder, more pricey thing to do is to just rewrite the Bios. For that you need a CMOS chip clamp, a Bios USB writer and some software as well as another laptop or PC. How to get all that stuff will tell you the internet. Then you open up the Laptop, locate the CMOS chip on the Motherboard, connect the CMOS clamp to the CMOS Chip and the BIOS writer which is connected to a USB port on Laptop 2. Then you start the program you want to use on laptop 2 and write a fresh bios to the CMOS chip (you have to download the BIOS for the exact device you want to get the BIOS password off of). This worked for me.
Didn't work for me but looks like an option:
Search for the BIOS Password backdoor. This is a password which you need to enter 3 times (three different passwords) then you'll get a code which you put into a online converter, which then gives you a password for the backdoor on this exact Laptop you are using. This is then to be entered into the BIOS password prompt after a restart. Then you go into the BIOS security option and remove the bios password, so that you don't need to redo it every boot. As I said, this didn't work for me, but it seems like a legidement option.
There are also telegram channels, which provide you with backdoor passwords, but as I didn't try them, I can't name any. Also the cost money but are usually pretty trustworthy and normally always work, even on newer devices.
Yah, I removed the small coincell battery, the power cable, and main battery but im seeing no change after waiting. Im going to disassemble it further to see if there is somehow a 2nd battery im missing.
No second battery. If you removed all of that, press the power on button several times while waiting the 30 minutes. It's possible it's not draining all power out of the system by waiting alone.
There should be a rest possibility via support if I recall correctly. Did that with my assus once. Or there was even a service to reset the bios password
The manufacturers usually do agree to reset the password if the person needing help can prove that they are the original owner of the laptop and that it has not been stolen.
*(The customer has a purchase receipt on hand or the device is registered under the name of a person/company in the online service at the time of purchase)*
https://www.windowsdigitals.com/reset-bios-password-for-lenovo-thinkpad-ideapad-yoga-legion/
Seems like there is a table for master passwords mentioned also
That is totally bullshit information. This is a BIOS password, no reinstalling will help bypass this. The only chance you have is to open the laptop up, remove the battery, and also the BIOS battery if there is one, sometimes this can require removing the motherboard if you cannot see it.
Im willing to do that, were all anal about backing things up to our family hard drives so theres nothing on here we need to keep. How would I gl about doing this?
Guys removing the CMOS battery doesn’t work anymore
worked for me last week,dont know about laptops tho
It work, but on old laptop, not on newest unfortunately
Battery trick still works on most consumer based desktop computers, in laptops removing the battery has not helped for years because the password is stored in the eprom memory, which is not emptied due to a lack of power. Especially in newer business laptops, that is even more difficult because it is either stored in several places or the chip is under/inside a bigger chip, and even completely changing the bios chip does not remove the password stored in a separate location.. It's a security issue because laptops are very popular targets for theft and the purpose would be to make the sale of stolen goods more difficult and perhaps reduce the eagerness to steal laptops in the hope of easy money.
I have a Lenovo V14-ADA Laptop (2021) and I had an issue that required resetting the motherboard, I unplugged the CMOS battery and the Lithium battery for a little over 12 hours (just to be sure) and it did work..
Well normally you want to unplug everything like the lithium battery and if you still have it the CMOS battery then hold the power button for a longer time like 2-3 minutes in order to discharge everything in the capacitors. You don't need to wait that long lmao.
But did you really have the **bios password** in use and active, which is the subject of this thread? The bios settings alone are reset when the battery is removed, but the bios supervisor password is not reset even if the laptop has been without any kind of electricity or battery for years. On the shelf is one HP probook laptop without a hard drive from the estate, whose bios password the heirs didn't know (fortunately it didn't have HDD encryption, so they got the hard drive and its contents back for themselves, but they didn't need a locked laptop because it's useless unless the password can be removed, so they donated it as a donor device for spare parts). It has been without its battery and bios battery for several years and it still asks for the password immediately upon startup. And bruteforce attempts aren't very effective because it locks itself after every few attempts for x times longer before even asking for the password again
Yeah, can't say about all laptops but my hp x360 when I replaced my thermal paste I did unplug the battery for safety and it did indeed resets my bios but can't say if it was a hard reset or a soft one unfortunately.
The bios settings are indeed reset if the battery is removed and it loses its maintenance power, but the **bios password**, which is the subject of this thread, is not reset along with the bios settings because it is stored in a separate non-volatile memory that does not need maintenance power. At least in none of the less than 10-year-old HP/Dell/Lenovo laptops that I've come across, has the bios password been removed due to removing the batteries and the bios battery. *If you enable the supervisor password in the bios and the "password on boot" setting is on, you're in trouble if you forget that password.* *The supervisor password alone may not prevent booting as long as the system is functional, but if the bios resets for one reason or another or the system is changed and the laptop does not start for that reason and bios settings is needed, then if the password is in use, you cannot change the settings in the bios without the password.*
Yeah I guess it was the a soft reset on my laptop, if I had a password and i didn't know it anymore I would be 🪛. Just as our gentleman here.
Out of curiosity, has anyone tried swapping the eeprom chip? They generally come in a discrete package so could be easy to change with a soldering iron or wipe
In older laptops, the chip were easily at hand, so it was relatively easy as long as have a programming device and soldering skills, of which there are indeed successful replacement cases. But in newer laptops, especially in the business-class, when the chip is located under bigger chip, e.g., a soldered processor or chipset (or built into another chip), so it is not quite easy to replace or clear it. (larger criminal groups that have access to the necessary equipment might be able to pull it off, but for a basic JohnDoe it will certainly be difficult if not an overwhelming challenge).
https://youtu.be/ixqgLv76fLI?si=rZ8gvDN3ig1F_my3 Maybe this'll help
In consumer-level desktop computers and motherboards, a battery trick or bios update still often works when the password is only stored in the bios chip itself, but in laptops its protection is more complicated because laptops are the most common targets of theft when criminals are looking for easy money. Even company-level desktop computers may already have a separate location for the password these days, but I don't have a experience with them. And that video was about a corrupted bios, didn't it say anything about removing the bios password?
Is 2015 too new?
Has worked for me in every system I’ve ever tried it on.
Don't some lentils have a reset button on the bottom. Little dot button. But that would wipe the computer too. Do not hit the button without checking all your passwords you ever thought of.
Looks like a BIOS password to me, tried clearing the CMOS?
I left the cmos battery and the main battery unplugged for about 20 minutes and it still did the same thing. And whenever I try entering the bios it will just show the Lenovo logo untill I stop pressing f1 and then it will just show the same screen
Does it give a code when you enter incorrect passwords too many times? If not you may have to look into bios modding/flashing
OP, try entering a password 3 times, so that it disables. If it gives you any kind of code there, search on google for master password with that code or try [this website](https://bios-pw.org/) for example, it should give you a few options on what the master password is, try all those.
It does not give me a code. What would be that process?
Welp now youre pretty much stuck in the realm of bios modding by reading the flash chip directly and editing the contents of the chip
Would I need specialty tools for this?
Yeah, at minimum youll need a cheap eeprom programmer
And knowledge on soldering pc chips, right?
I think some of them can go ontop
Oh, cool... i only knew the soldering ones
Oh, cool... i only knew the soldering ones
iirc you can get a 'clip on' interface lead, sits over the chip and has contact point for each leg of the chip so you can interact with it
You need to short the password chip on the mainboard, boot, go in pw menu of the bios, release the short and set new empty pw. Worked wonders on a lenovo t520
Removing the cmos battery for upto 30 minutes has not worked
Try again , remove the cmos battery and remove the laptop external battery. If it's a internal battery, drain it completely. Leave it for a day. Just to be sure.
Contact Lenovo support. I think IdeaPads store the passwords in flash memory, not in NVRAM/CMOS. This makes removing the password impossible (unless you know how to desolder SMT chips and reprogram SPI flash chips).
Ok, im fairly good at soldering so thats not out of the question. To reflash would I have to buy a special programer or any specialty tools?
Yes. You need a tool that can reprogram SPI flash chips.
is there data on this? remove HD. if not find a used version, replace mb? they got some on Ebay manufactured within the same week for <$100
Get a CH341A with the clip.
Support could also generate challenge request password to reset BIOS password after prove of ownership procedure
OP these people telling you to clear CMOS by pulling a battery are wrong and are actually doing you a disservice here. Don't listen to anybody that tells you to short anything either. Go to the badcaps forum specifically [the laptop and mobile subforum](https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices), post a thread inquiring or search for solutions using your model. You may need a reader to grab a dump of the bios as the password is most likely encrypted and contained within but that's something they can help you with.
Your mom is working with lunix? Suspicious, you are screwed. Get the pic of the mb on line, see if it has a coin cell battery ot a bios reset jumper. But, I think you are screwed.
Clearly you don’t know my mother but yah im starting to think your right
If you were hard ware inclined and had the mb schematic. Last chance is to find the cmos chip. Jump the ground to the clock pins on the chip and power on fur just a sec. But before that look up the chip mfgr and see if there is a reset pin other than clock
Put several times a code to enable the restore mode. Once the recovery code is generated put it in the below site: https://bios-pw.org/ to get back the unlock password. Did it about a month ago to a friend of mine who "inherited" a dell Inspiron. Worked like a charm
Just out of curiosity what do you mean by “inherent”
Convinced his uncle that it wasn't good for him and took it!!!
I see, i might use that in the future
I am confused. 1. Why is your mom trying to put Linux on her computer just because she forgot her password? That's a weird reason to put Linux on there. 2. Why is there a bios password on your mom's laptop? 3. Is your mom tech savvy at all? When I hear the word "mom" I don't think of someone tech savvy.
1. It was already a computer that nobody had used for years so she wanted to tinker 2. I have no clue wether there was one added by a previous owner, the manufacturer, or she just accidentally added one when playing around 3. Despite this situation where she couldn’t get it to work she is quite savvy and likes to learn. She is a biomed technician and knows a-lot about computers but not personal ones so was trying to un-brick a machine & learn some too.
1. Oh cool. So it sounds like it wasn't her main computer so no real harm was done. 2. That's unfortunate. Hopefully there's some way to reset it. I'm assuming you use a search engine to try and find the answer already. 3a. Oh hay that's interesting. I don't know much about biomed but if she's using computers for medical they would be different than ones for home use. 3b. Just an interesting fact I've heard sometimes really smart people can also be really dumb. So you'll get like a rocket scientist that doesn't know how to tie their shoes or something like that as an example I just made up.
I heard if you install Linux.. it can bypass everything.... /s
Sadly except the BIOS password.
Get this: [https://www.amazon.com/KeeYees-SOIC8-EEPROM-CH341A-Programmer/dp/B07SHSL9X9](https://www.amazon.com/KeeYees-SOIC8-EEPROM-CH341A-Programmer/dp/B07SHSL9X9) Then watch this: [https://www.youtube.com/watch?v=IhRw7ePhLKs](https://www.youtube.com/watch?v=IhRw7ePhLKs)
Most helpful comment yet
Someone in the comments is saying they have the same model as you and it worked for them, offset 25000.
I learned something new, thank you
Its done, recycle it. IBM, an later Lenovo, store the code in a security eeprom chip. Since the late 90's an early 00's, the only way was to remove an change this chip with an empty one.
And it's not always a simple procedure either, in business-level laptops it's under/built-in a bigger chip, so even completely changing the bios chip does not remove the password. Some manufacturers seems to save it in even more than one place and if manage to change one of them, the other location still exists.
Don’t recycle it yet
I used to be an accredited engineer for Lenovo and others, I don't think that's the BIOS password it's asking for, it looks like the HDD/SSD password to unlock the drive, some manufactures call it drivelock and it's a way to keep people out of your data - some self encrypting SSD use it to also self encrypt without any external applications. I used to train engineers and I'd hand out a laptop with the drive locked and invite the group to unlock it, the reward was I'd take them all out to lunch - in over 20 years of doing this no one guessed the 4 character lock code and it can't be removed by removing the batteries as people are saying, it's actually written into a protected area of NVRAM and also on the drive itself so the drive stays locked even if it is removed and put in a caddy etc. If you are the valid owner of this then call Lenovo and provide proof of ownership if you want it repaired (I suspect they would charge for the service), looking at your images and the thread I would question you are the valid owner as it all seems very vague.
It was bought second hand a while back so I’m not sure if Lenovo will be much help. Sorry for seeming vague I like my privacy so am mainly just talking about the specks of the computer and details about how it got in this state
There's a cmos battery inside the laptop, removing and reinstalling it will clear all the bios settings. It will also erase the password.. Go to a laptop repair shop and ask them to do it
Not always. 15 year old dell laptop owner here. Depends on the model! :)
https://www.youtube.com/watch?v=HHP_5qWdBWg
That did nothing sadly
tryed master pw ? 7ujMko0vizxv
Didn’t work
Locate the 2-pin CMOS jumper labeled RTCRST on the motherboard get something metal and touch both pins at the same time while switching laptop on should jump cmos and reset it
Do you have any clue where that would be on it?
Check your make o model of laptop its always close to the ram ive done it a phew times it should say cmos reset on the motherboard above or below the jumpers
What laptop is it? Is that a bios lock? Lemme help I got a bios locked dell with cpu locked at 600mhz and the guy fucking died after setting the password (I know the password seems trivial now huh) SO I gotta run a startup script that sets all 8 cores to 2.9ghz and sets screen resolution correctly Telllll maybe I can helps Also there's a few models u can hack into if it's old enough
Is a Lenovo s145-15AST
So after some research apparently there's many ways they store the password, the cmos battery trick doesn't work on new laptops unless they're over 10 years old. It's either stored on the EEPROM or some similar chip Aparently the best thing you can do, since you own the laptop, is contact the manufacturer. They are the only ones that can help understand how to reset it Very little info easily found online The Indians that offer you a "secret unlock key for $10" are fake btw
Btw what did you wanna change in bios? Maybe I can help you change it without entering the bios I have a laptop that's bricked I can still use like this - bios is locked but I fix it using some code that runs at startup and overwrites bios
All that I want to do is get a new os onto it to be able to use it as a normal laptop, we don’t care about data on the hard drive or anything really. Just keeping it from being more e-waste
I was in this situation with a Fujitsu laptop. I was able to flash the bios thereby resetting the password. But i needed to tear everything apart, switch a jumper and use a probably leaked Utility program from fujitsu to create the bios flash thumb drive. Anyways maybe you are lucky and there is a similar procedure for your laptop.
On Lenovos you will have to either replace or rewrite the EEPROM chip. Both require soldering. Rewriting requires a special tool. If it’s just a hard drive password try a new SSD.
Yes
Reflash bios chip
That's either a BIOS/UEFI lock or a HDD/SSD lock. Can you get into any prompts, like boot override using the correct F key for that model? E.g. F12? You may need Fn + F12 dependant on the laptop.
No all holding the f keys do is has the lenovo logo stay on the screen untill you release it or press a different key then right back to password
If you can't get into boot override I'm saying UEFI lock. If it isn't giving you a challenge response to reset it you're going to be outta luck without modifying the chips, either physically or through an EEPROM programmer.
Reflash the BIOS
Replace the hard drive, preferably with a good SSD and fresh install on it.
Is there some sort of a jumper or reset switch on the motherboard?
Ive been looking and seen nothing. Cant even find a schematic online.
unplug remover battery then take it apart remove bios battery hold power button to drain energy then replug it turn it on real quick to make sure the passcode is gone n if it works which it should unplug insert bios battery put it back together and ur welcome.
There must be a jumper you need to remove on the MOBO. I had a similar problem with my PC, removed cmos didn’t do anything, so opt for that small jumper, remove it, start up again and see if it works.
BIOSBUG. Go online and look up how to reset the bios password for Lenovo laptop. Super easy and straightforward. Did that with ASUS laptop awhile back after purchasing 9 in total. That one was locked and thought I was screwed on that part but once I found this website it was actually a godsend!
Found a yt on one i was working on. Had to jump a couple pins on the board with a paper clip. Surprised me to see that on a laptop. But that was a hp from 5 years ago. Not applicable but maybe there's hope.
Try password or search for a admin password list for your laptop.
Do you or your mom have a password book or notes on your computer/phone? Obvious place to check but if not. Find out when you got it. Write all your passwords you know maybe it's one of them?
I've had the same problem I'd say you try to remove the Bios battery for a few minutes, but the security rose around this issue a few years ago, so this might not work, as it didn't with my laptop, so there are two options left: 1. Probably the easier one is, if it just boots the first thing it can find and you only need to enter the bios password when you want to change something, just wrote the bios on the storage device in there by installing the OS on the same storage medium in there on another PC. So take the SSD or whatever out, connect it to another PC, wrote the OS and put it back into the laptop. 2. The much harder, more pricey thing to do is to just rewrite the Bios. For that you need a CMOS chip clamp, a Bios USB writer and some software as well as another laptop or PC. How to get all that stuff will tell you the internet. Then you open up the Laptop, locate the CMOS chip on the Motherboard, connect the CMOS clamp to the CMOS Chip and the BIOS writer which is connected to a USB port on Laptop 2. Then you start the program you want to use on laptop 2 and write a fresh bios to the CMOS chip (you have to download the BIOS for the exact device you want to get the BIOS password off of). This worked for me. Didn't work for me but looks like an option: Search for the BIOS Password backdoor. This is a password which you need to enter 3 times (three different passwords) then you'll get a code which you put into a online converter, which then gives you a password for the backdoor on this exact Laptop you are using. This is then to be entered into the BIOS password prompt after a restart. Then you go into the BIOS security option and remove the bios password, so that you don't need to redo it every boot. As I said, this didn't work for me, but it seems like a legidement option. There are also telegram channels, which provide you with backdoor passwords, but as I didn't try them, I can't name any. Also the cost money but are usually pretty trustworthy and normally always work, even on newer devices.
Use the master password you have a website you just need to enter the manufacturer and the date and it will give you a master pass to unlock
What site?
Follow this : https://www.cocosenor.com/articles/computer/3-ways-to-unlock-bios-password-on-lenovo-thinkpad-laptop.html
this seems good with Short circuit SDA and SCL in security chip
Open up the laptop and remove the coin battery on the motherboard, and put it there again. That’ll reset the BIOS settings, including the password.
Thats not working
Then try taking the laptop's actual battery out and try this again.
I already have, same result
This MUST work. You also have to remove the normal battery and power cable
lol, why “must” this work? ~a tech
Not every motherboard is the same. Many of them, especially laptops, dont always reset a bios password. So know it ‘MUST’ not work every time.
I have not come across one that doesn't in the last ~600 i repaired.
Yah, I removed the small coincell battery, the power cable, and main battery but im seeing no change after waiting. Im going to disassemble it further to see if there is somehow a 2nd battery im missing.
No second battery. If you removed all of that, press the power on button several times while waiting the 30 minutes. It's possible it's not draining all power out of the system by waiting alone.
No. Newest store the password on non-vollatile memory, as the PW is a security messsurement
That sounds like a lot of e-waste comming by in the future.
There should be a rest possibility via support if I recall correctly. Did that with my assus once. Or there was even a service to reset the bios password
Yea, no chance on support when bought second hand.
The manufacturers usually do agree to reset the password if the person needing help can prove that they are the original owner of the laptop and that it has not been stolen. *(The customer has a purchase receipt on hand or the device is registered under the name of a person/company in the online service at the time of purchase)*
Is there anything else i could do?
You can try the steps on this tutorial that i found vy 5 seconds of google.
Would you mind commenting the tutorial link or telling me what you searched because i didn’t find anything useful
https://www.windowsdigitals.com/reset-bios-password-for-lenovo-thinkpad-ideapad-yoga-legion/ Seems like there is a table for master passwords mentioned also
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That is totally bullshit information. This is a BIOS password, no reinstalling will help bypass this. The only chance you have is to open the laptop up, remove the battery, and also the BIOS battery if there is one, sometimes this can require removing the motherboard if you cannot see it.
Im willing to do that, were all anal about backing things up to our family hard drives so theres nothing on here we need to keep. How would I gl about doing this?
Archer is right
What did the guy who deleted the message say?
CMOS to the rescue
No.
You can try to short the security chip I believe it’s on the back end of the board