• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Dell bios passwords 595B and 2A7B

Status
Not open for further replies.
Good day sir. I wud really appreciate ur help with my dell latitude E5400 bios password reset. The service tag is below;
JXC974J-2A7B
Thank you in anticipation
 
Can you please help me with this.

Dell M4500
BIOS Version: A14
Service Tag: 3WD1VM1
System Number: 3WD1VM1-1F5A

Thank you....
 
Can you help me please? I have a dell D830 . Bought from goodwill and cannot use. Service tag is cs4qwd1. Thank you very much
 
Hi could you give me bios code for dell m4400 a16 bios BLFC1L1-2a7b
many thanks
 
My M4600 has bios lockeD up.

System number F0NJQ1-1D3B

ANYONE CAN HELP?

/MIKE
 
Can you help me please? I have a dell 1735 . It has bios lockeD up. Service tag is HZ1YW3J-595B. Thank you very much.
 
Please help,

need my dell latitude d430 HARDISK password ;
#GJ16QA11470-595B

no prob with the system password.

thanks
 
Hi,

Could you help me please i have a dell latitude d430 and its now asking for a system primary HDD password for #**9751WDVJW-595B?

Thank you!!!
 
I'll help you all out.

I use this at the shop.

https://bios-pw.org/

you can download the executables via the sources link
 
This laptop has been a thorn in my side for a LONG time. I got codes from another member here, and from a code generator (same codes) but neither will work.
If the original user set up a password, will Dell's backdoor still work?
Here is my info on the system:
Dell "Studio" 1735
7JZMDH1-595B

This is the original code I received -
4ez1csnt
Yes, I used external keyboard,, & also tried the ctrl + enter x2 combo.
This is the screen after 3rd attempt:
dsc00622-jpg.57754
 
I'm a new member locked dell latitude E6400 in bios I got passed the 1st password now my hard disk drive is locked help
 
erin said:
I'm a new member locked dell latitude E6400 in bios I got passed the 1st password now my hard disk drive is locked help
Click to expand...

If the hard drive has a password set, throw it out and install a new one. Consider all data on it lost. There is no (easy) way to break HDD passwords. If the drive contained irreplaceable data and you need it back, prepare to spend about $1000-$1500 (or more) on a professional data recovery service - and even then there are no guarantees.

SpoiledRotties said:
This laptop has been a thorn in my side for a LONG time. I got codes from another member here, and from a code generator (same codes) but neither will work.
If the original user set up a password, will Dell's backdoor still work?
Here is my info on the system:
Dell "Studio" 1735
7JZMDH1-595B

This is the original code I received -
4ez1csnt
Yes, I used external keyboard,, & also tried the ctrl + enter x2 combo.
This is the screen after 3rd attempt:
dsc00622-jpg.57754
Click to expand...

The code you used is the one that comes up in the standard Dell generator. If that doesn't work then your best bet is to open it up and find the BIOS chip(s). They will be 8 pin surface mount chips with a number like ST24C02. Usually near the coin battery. You have to find the chip and short the SCL pin to ground (Vss) while powering it on (you have to look up the chip's datasheet by its actual number to find out what pin does what). This resets the BIOS to default, removing the setup and boot passwords. Be aware though, this will NOT remove a HDD password. See my previous response to Erin regarding that.
 
Last edited by a moderator:
user21 said:
cant you just clear CMOS ???
Click to expand...
-- Boy that would be great if you could, but unfortunately with the laptop models that is not an option for us. (The CMOS is powered separately & can't be cleared like the desktop models by taking out the battery or changing jumper settings :( ) And it is VERY frustrating when the generated codes fail to let you slip through.

taz420nj said:
The code you used is the one that comes up in the standard Dell generator. If that doesn't work then your best bet is to open it up and find the BIOS chip(s). They will be 8 pin surface mount chips with a number like ST24C02. Usually near the coin battery. You have to find the chip and short the SCL pin to ground (Vss) while powering it on (you have to look up the chip's datasheet by its actual number to find out what pin does what). This resets the BIOS to default, removing the setup and boot passwords. Be aware though, this will NOT remove a HDD password. See my previous response to Erin regarding that.
Click to expand...


Interesting! Most of my work on laptops (before this one) had been either simple repair/replace jobs - desktops were more my area, and when I hit this brick wall I asked a colleague with more laptop experience if tweaking the chip would be an option & they pretty much told me not to waste my time going this route.
Guess they didn't know as much as I thought they did, LOL - THANK YOU!!
In regards to the HDD, I already have the replacement drive ready- I knew the HDD p/w's were an exercise in futility.
This poor guy has his heart set on having this monstrosity of a laptop running again- even after all this time. So, thanks to you, I guess maybe I can finally make his day!
 
Last edited by a moderator:
SpoiledRotties said:
-- Boy that would be great if you could, but unfortunately with the laptop models that is not an option for us. (The CMOS is powered separately & can't be cleared like the desktop models by taking out the battery or changing jumper settings :( ) And it is VERY frustrating when the generated codes fail to let you slip through.
Click to expand...
For all intents and purposes, shorting the BIOS clock pin to ground is exactly what the CLR_CMOS jumper does.. ;)

Many laptops actually DO have a "jumper" of sorts.. basically an unlabeled (or non-descriptly labeled, such as Toshiba's B500) pair of adjacent pads that you short with a screwdriver or paperclip while powering on. And again, it's just shorting the clock pin to ground. However on most brands it's easier to just find the BIOS chip than to hunt down what the pad identifier is.
 
Last edited:
erin said:
How do I throw it out and create a New one
Click to expand...

Uhhh you remove the hard drive from the laptop and insert it into the nearest garbage can.. Then you buy a new hard drive and insert it into the laptop where the old one previously was...
 
Hey, i bought a used Dell M4500 and it has a passworded bios. Tried to call Dell tech support but they said they can't help me without a proof of purchase. And now I can't reinstall windows... Please help me...
Service tag: 8NC34Q1
System number: 8NC34Q1-2A7B
 
Ionescu Ioan said:
Hey, i bought a used Dell M4500 and it has a passworded bios. Tried to call Dell tech support but they said they can't help me without a proof of purchase. And now I can't reinstall windows... Please help me...
Service tag: 8NC34Q1
System number: 8NC34Q1-2A7B
Click to expand...

Try BvC0LSIvNZj26x06
It is case sensitive, and they are both zeros, not O's.
 
The 7th digit is an uppercase I (EYE), make sure thats what you're putting in.. As I said this is case sensitive so make sure your caps lock is off as well since you won't be able to see as your typing. Also try with an external USB keyboard.
 
Status
Not open for further replies.
Back
Top