HP / Dell / etc. Laptop password help thread (Jan-Mar 2008)

[raybay]

No, Mr. Snoobs, this is not right. Password removal is machine by machine. Each model can have a different password hardware and software system... Several models may be similar, then you might have the next model that is different... and it varies widely to very widely by brand and model.
Shorting out some chips worked once on older models, but those could usually never be passworded again. Others, even adjacent Dell models, can not be shorted out.
Newer systems require a EEPROM programmer with a knowledge of how the system password works. There are many Dell and Lenovo brands that cannot be fixed by a normal human being once the password is there, unless it is done at the home base of the manufacturer.
It is as much a matter of luck as anything.

 

[MrSnoobs]

No, Mr. Snoobs, this is not right. Password removal is machine by machine. Each model can have a different password hardware and software system... Several models may be similar, then you might have the next model that is different... and it varies widely to very widely by brand and model.
Shorting out some chips worked once on older models, but those could usually never be passworded again. Others, even adjacent Dell models, can not be shorted out.
Newer systems require a EEPROM programmer with a knowledge of how the system password works. There are many Dell and Lenovo brands that cannot be fixed by a normal human being once the password is there, unless it is done at the home base of the manufacturer.
It is as much a matter of luck as anything.

Well mine is a D400, so I dont know if that qualifies as "Old". I realise that once I erase the password, it cannot be passworded again (at least not without re assigning a service tag, which I believe is possible) but thats a moot point for me. I have no interest in passwording the Mobo again.

I have heard of particular people successfully shorting a D400, but using pins that make no sense according to the data sheets of the specific EEPROM chips. For instance, I thought that the point of the chip shorting method was to bypass the signal asking for passwords around the eeprom chip, sending it straight to the GROUND pin of the chip. However, the guides I have read all seem to short pins 3 and 6. Neither of these are GND, so I am unsure of which signals need to be shorted. If I knew this, I could probably short any chip out there!

So, in short, which pins should I short, IF one assumes it does work!? Many thanks in advance.

 

[champ]

i can unlock hp and compaq only i need is the hash code

I CAN UNLOCK THE HP AND COMPAQ LAPTOPS.
ALL I NEED IS THE HASH. CODE.EMAIL IT TO ME
email removed

 

[champ]

mr snoobs

the papercliptrick works on your model dell laptop iam shure and pin 3 is ground you short it a couple of times to pin 6 till you have the manufactured mode and the hit fn-x and the password is gone.when you want i send you the guide to do it

 

[MrSnoobs]

the papercliptrick works on your model dell laptop i am sure and pin 3 is ground you short it a couple of times to pin 6 till you have the manufactured mode and the hit fn-x and the password is gone.when you want i send you the guide to do it

That would be absolutely wonderful if you could. If you are certain it is pin 3 to Pin 6, then I shall try this also.

I direct you however, to this site: http://tiny.cc/xRmkt
It is a data sheet for the 24c256n chip I have. It clearly states that pin 3 is NC, or "No Connection". Pin 4 is ground apparently, and pin 6 is SCL, or the Clock input. It makes sense to ground the input, as this would bypass the eeprom chip and therefore short it. Or something. I am not an electronics expert by any degree!

Is it the pressing of Fn-X that clears the tag/password, or the shorting?

Going to pains now: Most dell unlocking guides mention the 24c02 chip. The datasheet is here: http://tiny.cc/u3LOC
This shows pins 3 and 6 to be the chip inputs and clock input respectively. This is what has lead to my confusion overall. Which pins are meant to be shorted!!??

Yes, Champ, if you would be so kind as to send me that guide, I would be in your debt. Many thanks in advance.

 

[Elektronix]

HP pavilion ze5185

Hello

Please for unlock code for HP pavilion ze5185.
Readed hash code is: 02013

Thanks

 

[nuntzio]

hi all. i have a dell m90 precision but i need the admin. pass. If you people can help me please doo it. my service tag is: #4P83B2J -595B. If you have any information about this modell please leave a mesage. I spend a lot of money but nothing.
Thanks in advance. You are my last hope!!!!!!

 

[MrSnoobs]

Still no luck with Pins 3 and 5. Made the chip spark shorting 4 and 5, but nothing more. Can't even replicate that anymore!

Any ideas?

 

[MrSnoobs]

Right. Although I have learnt a lot about EEPROMs and laptop architectures and Dell password protections etc, I am stil a dolt. It was pins 3 and 5, but on a COMPLETELY different chip. So, for the record, the D400 eeprom chip is on the TOP of the motherboard, on the left hand side. Was sooo easy to do once I found the right chip!

All this thanks to Champ. Legend from the Netherlands. In your debt brother.

 

[sayword]

Does anyone know if a Dell Inspiron 6400 has an eeprom chip and where it is located. I have this laptop taken apart but can't seem to find the chip. Will the shorting method even work with this model. TIA.

Edit: I found in another thread that there is no eeprom chip in the 6400 and that the bios password is stored in the keyboard controller? Is this true and if so, can I short the keyboard controller or is there any other alternatives to this. TIA

 

[raybay]

You cannot short out the password on a Dell Inspiron 6400. Many have tried. I have yet to meet a successfool.

 

[sayword]

You cannot short out the password on a Dell Inspiron 6400. Many have tried. I have yet to meet a successfool.

damn, that sucks...so that means i have to pay for a password...can anyone pm me with the cheapest one...TIA...

 

[Jake_c400]

Rundam_,

I know you get 100s of messages like these, so first off I will apologise, but it really does seem like you're the only one who can help (bar taking the machine apart, and I don't have enough hours in the day)

Seems you have the knack of getting these master passwords for -595Bs; so here's my story.

Well, my dad worked at a company called EHS Brann, who gave him a couple of laptops to work from home on. When he left his job there, they asked for the best one back, which he gave, but did not bother asking for the Dell Latitude C400, which I have now inherited. Unfortunately, no-one knows the BIOS password, and my dad can't remember it (it was only ever written down on a post-it note before, and that got recycled). So I'm rather stuffed.

My service tag is #G7G5N0J-595B.


Any help would be greatly appreciated, thanks

- Jake.




On a side not, I MAY try to short it later on, but to verify, I've heard two different opinions...do I short pins 3 and 5, or pins 3 and 6?

Thanks

 

[raybay]

According to the service tag you left, this computer has been refurbished by Dell, which makes the password repair much more difficult.
Some password people can fix it, because the Dell Latitude C400 was not all that difficult, but this Dell does not appear to be as you described unless the company bought them from Dell as refurbs.
The shorting technique posted in these forums should work, but the service tag will not work again for the restoration of Dell XP software.

 

[mscrx]

sorry but almost everybody uses the term "bios password".
so I have to ask again. which password do you need for the c400?

1. the system password (gray/white screen)
2. the harddisk password (gray/white screen)
3. the bios configure password

please post back!

 

[papirico]

Bios password chip location on latitude D531

have a Dell Latitude D531 laptop with: SERVICE TAG 8HZ8LF1-595B. Now, i have try all the password removal software and master password Generators but none of those work. I can't boot from anything untill i reset the bios password. I open my laptop but I could not locate the EEPROM 24c02 chip. So, I like to know if anyone here has been able to unlock any dell with service tag ending on 595B or anyone knows if there is a EEPROM chip that can be reset and where is located at. I would really appreciated.

 

[Paragon33]

The D531 uses a 25 series EEProm Chip and can not be cleared by eeprom shorting. You need a guy with a Master Password generator for the 595B systems and they all charge fees, except for rustam, who uses this forum for free help, but not often, and not for very recent systems.

 

[Paragon33]

Does anyone know if a Dell Inspiron 6400 has an eeprom chip and where it is located. I have this laptop taken apart but can't seem to find the chip. Will the shorting method even work with this model. TIA.

Edit: I found in another thread that there is no eeprom chip in the 6400 and that the bios password is stored in the keyboard controller? Is this true and if so, can I short the keyboard controller or is there any other alternatives to this. TIA

The 6400 has a 25 series EEProm chip, and it can not be shorted, Starting with the D420,D520,D620, D820 and contemporary Inspirons, all of them came with a 25 series chip. The inspiron 9300 and Latitude D810 are the last Dell models with the 24 series chips that can be shorted. I have noticed a ton of "horse dung" on this site from people who do not know what they are talking about. For one, Passwords of your own can be set on "paperclipped" machines if the Service Tag is reset using Service Tag EXE. I have done by now over 70 boards and laptops, and had problems with only 2; those appeared to have problems that were covered up by the passwords. One was a D510 with a wireless controller problem which was fixed by replacing it with another mother board, the other was an Inspiron 2200 that had a crumbled CD Drive connector that would not allow the CDRW/DVD drive to be recognized as present and also required replacement with another board. I had a couple of I8000/C800 boards that had a mid-series BIOS Version on them that was "buggy" and would allow no boot from any device; those required replacement of the socketed BIOS Chip with another chip with a late BIOS version flashed on it.

 

[Paragon33]

Wrong!!

According to the service tag you left, this computer has been refurbished by Dell, which makes the password repair much more difficult.
Some password people can fix it, because the Dell Latitude C400 was not all that difficult, but this Dell does not appear to be as you described unless the company bought them from Dell as refurbs.
The shorting technique posted in these forums should work, but the service tag will not work again for the restoration of Dell XP software.

When Dell refurbed some of the older models, they flashed the BIOS and removed the -D35B system which could be cleared of Passwords with the old Latitude Master_PW generator, and substituted the -595B System. The C600/Inspiron 4000 wwere the last Dells to be affected by this change. I have a copy of this older generator and have used it several times successfully on a CPiA, CPTS, CPxH, CPxJ models and one C600 that still had the original factory BIOS version. Dell also changed out the EEProm chips beginning with the C600/Inspiron4000 models to chips that could no longer be shorted before Power On, but required a delay of from 1-6 seconds before applying the short. Dell was characteristically voiceless about what they had done as you would expect, and the Issues Fixed and Enhancements Texts about the BIOS Flashes had nothing about this change
The Service Tag has absolutely nothing to do with reinstalling W-XP. The Dell refurbs owners were no longer eligible to request any Dell OEM software as replacements, or so I was told with my original Latitude CPiD, which was a Dell refurb and came without any ,and the W98SE COA sticker had been removed also.

 

[Paragon33]

New shorting/grounding technique for 24 series EEProm Chips

I recently have been using a modified technique on some of the more stubborn EEProm chips using the modified shorter I have been using for more than 2 years; that is a straight pin with a piece of wire soldered to it and a mini-gator clip at the other wire end. The new technique is to ground the clip and place the tip of the pin between the #5 and #6 legs(pins), turn on the board and then move the pin back and forth to touch each of 5&6 pins altermately with a touch on each for 1-2 seconds. This drains the chip in spurts and avoids the shutdown which results if you just touch a single pin. This has worked on 7 boards so far, an I-8200, a C840, a D600, a D510, a I-2200, a C610 and a C640. Also, having a charged CMOS Battery helps immeasurably.

 

[Tmagic650]

Interesting technique Paragon33,
how many motherboards have you trashed?

 

[mscrx]

do you have a picture or illustration of the clip - wire - mini-gator device for those who are not native speakers?

 

[Paragon33]

New technique

Interesting technique Paragon33,
how many motherboards have you trashed?

That's right, always take the POSITIVE approach, especially if you have not tried it. The 2 problem boards(that is all) both booted and worked OK except for the aforementioned problems and the Grounding had nothing to do with creating either problem.

 

[Paragon33]

Mod shorter

do you have a picture or illustration of the clip - wire - mini-gator device for those who are not native speakers?

Yes, I have a picture, but the 100kb limit on attachments prevents my attaching it here. This linked page on the website shows it by clicking the word "shorter"
http://www.download.centre4service.com/introd.html

 

[kimsland]

Updated my pic !!