Dell latitude 5401 bios password

[ogauss]

Re: Dell latitude 5401 bios password

Please help me clear the password on this BIOS. The Laptop is Dell Latitude 5401, I used CH341a to extract images from UT6 and UT2 which were the BIOS chips that I identified on the boards using the schematics.

I needed to use this method since I was unable to boot any device with the computer. The BIOS dumps and part numbers are included in the attached rar file. The other BIOS files that I see on this page are typically much larger, perhaps I need to extract it in a different manner, but each 8Mbit device is 1MByte, so the math checks out.

[Vesko356]

Re: Dell latitude 5401 bios password

Please help me clear the password on this BIOS. The Laptop is Dell Latitude 5401, I used CH341a to extract images from UT6 and UT2 which were the BIOS chips that I identified on the boards using the schematics.

I needed to use this method since I was unable to boot any device with the computer. The BIOS dumps and part numbers are included in the attached rar file. The other BIOS files that I see on this page are typically much larger, perhaps I need to extract it in a different manner, but each 8Mbit device is 1MByte, so the math checks out.

"Do not touch the 25Q80xxxx chip"
Dump the chip labeled UC5 (32MB or 8MB).

images from UT6 and UT2 which were the BIOS chips that I identified on the boards using the schematics.

Look again at the schematic:

[ogauss]

Re: Dell latitude 5401 bios password

Please unlock the bios thanks for the pointers.

[Vesko356]

Re: Dell latitude 5401 bios password

Please unlock the bios thanks for the pointers.

Here you are:

[ogauss]

Re: Dell latitude 5401 bios password

Thanks!

[Vesko356]

Re: Dell latitude 5401 bios password

Thanks!

You're welcome.

.

[paul13]

Re: Dell latitude 5401 bios password

Please unlock the bios, board LA-H171P

[mandrake87]

Re: Dell latitude 5401 bios password

Please unlock the bios, board LA-H171P

1st boot, press F2, write service tag, disable Absolute, save, restart. 2nd boot press Alt+F to exit manufacturing mode.

let me know if it works for you

[reflexible]

Re: DELL Latitude 5401 BIOS Password 8FC8

Managed to restore the system to manufacturing mode by writing 0xFF to BIOS addresses between 0x45000 and 0x48FFF which belong to EC region.

Hello
did so
working!
I have a problem, the microphone does not work
Help!
thank you!

[lbarnal]

Re: Dell latitude 5401 bios password

Hello, I need to remove the password from my Dell Latitude 5401 but I don't know what more information is needed apart from the serial number 9RQR733-8FC8

[Vesko356]

Re: Dell latitude 5401 bios password

Hello, I need to remove the password from my Dell Latitude 5401 but I don't know what more information is needed apart from the serial number 9RQR733-8FC8

Read the rules before posting
RULES UPDATE for BIOS requests/offers *AVOID BANNING, READ BEFORE POSTING*
https://www.badcaps.net/forum/showthread.php?t=103570
You MUST:

• Read BIOS guides, methods, resources and tools
• Try the method at BIOS guides, methods, resources and tools before requesting help
• Explain you were not able to succeed with the methods at BIOS guides, methods, resources and tools
• Use search function in case someone already answered your request
• Post under a related thread if it exists
• Provide the full machine model number, serial number (or Service tag, SNID) and the board model number (see https://www.badcaps.net/forum/showthread.php?t=88758 )
• Name your thread with model numbers and request
• Provide a BIOS/EC dump if possible
• Attach files directly to your post instead of linking to external websites
• Post what the problem is, be specific - black screen, no boot, running slow, password.
  Do NOT post "clean me", "clear bios", "clean bios", "bios need" or other such terms

.

[lbarnal]

Re: Dell latitude 5401 bios password

Hello, I have never made a backup of a BIOS, I did this .rom according to what I found on the internet with the program "Universal BIOS Backup ToolKit 2.0", I also attached a screenshot of the CPU and the motherboard. The serial number is "9RQR733-8FC8"

[hoaca388]

Re: Dell latitude 5401 bios password

Hello, I have never made a backup of a BIOS, I did this .rom according to what I found on the internet with the program "Universal BIOS Backup ToolKit 2.0", I also attached a screenshot of the CPU and the motherboard. The serial number is "9RQR733-8FC8"

The password is on the 8MB chip, not the 16MB chip.

[cimer10]

Re: Dell latitude 5401 bios password

HI
Please reset password
Dell latitude 5401
G4P59Y2-8FC8

[SMDFlea]

Re: Dell latitude 5401 bios password

HI
Please reset password
Dell latitude 5401
G4P59Y2-8FC8

Read the rules at post #31

.

[st-cfx]

Re: Dell latitude 5401 bios password

Hello! Please help me unlock my Latitude 5401 LA-H172P Rev 1.0 (A00) ST:7B9YM13

[volinakis]

Re: Dell latitude 5401 bios password

Hello! Please help me unlock my Latitude 5401 LA-H172P Rev 1.0 (A00) ST:7B9YM13

try

[st-cfx]

Re: Dell latitude 5401 bios password

Thanks! Works.

[cesarmayo]

Re: Dell latitude 5401 bios password

Hello can you please help me to unlock my bios dell latitude 5401 3H3VP13-8FC8

[SMDFlea]

Re: Dell latitude 5401 bios password

Hello can you please help me to unlock my bios dell latitude 5401 3H3VP13-8FC8

Unlock it yourself. Read -> https://www.badcaps.net/forum/showthread.php?t=103570 and -> https://www.badcaps.net/forum/showthread.php?t=103526

.