Dell Latitude 5400 Bios password

**hoaca388** · 10-10-2024, 06:18 PM

Originally posted by jonassonic

IS THERE THE POSSIBILITY, EVEN IF YOU PAID, FOR YOU TO EDIT A CLEAN FILE DIRECTLY FROM THE SITE? THE NOTEBOOK ONLY HAD A PASSWORD IN THE BIOS, NOW IT DOESN'T TURN ON ANYMORE. I THINK THERE WAS AN ERROR WHEN BACKING UP THE ORIGINAL, I WAITING FOR YOUR RESPONSE SERVICE TAG DQ3F873

Latitude 5400

Service Tag: DQ3F873

Attached Files

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Latitude 5400 Service Tag_DQ3F873.rar (11.22 MB, 12 views)

**SMDFlea** · 10-11-2024, 03:42 AM

Originally posted by jonassonic

IS THERE THE POSSIBILITY, EVEN IF YOU PAID, FOR YOU TO EDIT A CLEAN FILE DIRECTLY FROM THE SITE? THE NOTEBOOK ONLY HAD A PASSWORD IN THE BIOS, NOW IT DOESN'T TURN ON ANYMORE. I THINK THERE WAS AN ERROR WHEN BACKING UP THE ORIGINAL, I WAITING FOR YOUR RESPONSE SERVICE TAG DQ3F873

Read the rules, do not offer payment. All help here is free. https://www.badcaps.net/forum/troubl...before-posting

**tatanachi** · 10-12-2024, 08:43 AM

Hey guys!

Can anyone help me remove the admin password and disable absolute on bios, please? I'll post the readings from the two chips

Model: Dell Latitude 5400
Chip 8MB UC5: Winbond 25Q64JVIQ
Chip 16MB UC6: Winbond 25Q128JVSQ
MB: EDC41 LA-G891P Rev: 1.0 (A00)
S/T: 10JG0Z2

Thanks!

Attached Files

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ServiceTag_10JG0Z2.zip (9.38 MB, 3 views)

**jonassonic** · 10-12-2024, 09:27 AM

friend #hoaca388, The notebook doesn't turn on, help me, it only has the u5 and the ut6. i5 processor, all tensions present.

**hoaca388** · 10-12-2024, 06:37 PM

Originally posted by jonassonic

friend #hoaca388, The notebook doesn't turn on, help me, it only has the u5 and the ut6. i5 processor, all tensions present.

Try again

Attached Files

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Latitude 5400 Service Tag_DQ3F873.rar (11.22 MB, 3 views)

**hoaca388** · 10-12-2024, 06:51 PM

Originally posted by tatanachi

Hey guys!

Can anyone help me remove the admin password and disable absolute on bios, please? I'll post the readings from the two chips

Model: Dell Latitude 5400
Chip 8MB UC5: Winbond 25Q64JVIQ
Chip 16MB UC6: Winbond 25Q128JVSQ
MB: EDC41 LA-G891P Rev: 1.0 (A00)
S/T: 10JG0Z2

Thanks!

Removed the admin password and disable absolute.

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**djesoric** · 10-12-2024, 09:59 PM

please help me remove password and disable absolute on my dell latitude 5400.thank you in advance.

Model: Dell Latitude 5400
Chip 8MB UC5: Winbond 25Q64JVIQ
Chip 16MB UC6: Winbond 25Q128JVSQ
MB: EDC41 LA-G891P Rev: 1.0 (A00)
S/T: 3xxhx33

Attached Files

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**rex98** · 10-12-2024, 10:55 PM

Originally posted by djesoric

please help me remove password and disable absolute on my dell latitude 5400.thank you in advance.

Model: Dell Latitude 5400
Chip 8MB UC5: Winbond 25Q64JVIQ
Chip 16MB UC6: Winbond 25Q128JVSQ
MB: EDC41 LA-G891P Rev: 1.0 (A00)
S/T: 3xxhx33

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

Attached Files

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patched_25q64jviq.rar (2.21 MB, 14 views)

**djesoric** · 10-13-2024, 01:22 AM

no more password but absolute is still enabled.

**rex98** · 10-13-2024, 04:58 AM

Originally posted by djesoric

no more password but absolute is still enabled.

here flash both

Attached Files

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Dell Latitude 5400 ok new.rar (8.85 MB, 23 views)

**tatanachi** · 10-13-2024, 10:18 AM

Originally posted by hoaca388

Removed the admin password and disable absolute.

It worked, system's working fine! Thank you so much!

**moshu** · 10-24-2024, 01:00 PM

Originally posted by aldopc

Re: Dell Latitude 5400 Bios password

Did you desolder the chip from the board or are you reading it soldered? If so, you must remove it from the motherboard and read it out.

Hi all,

I was reading all 35 pages but is not clear to me if is really need it to remove the chip/chips from the motherboard.
One fact is clear that I cannot read the chip if is on the motherboard using CH341 programmer, because once I connect the wires to programmer, programmer is not recognized by the Windows unless I've attache the power supply to the motherboard I am reading the BIOS chip. Even that I am getting an error like chip is not recognized
Motherboard have a UC5 (25B64CYiG) and an UC6 (25B127DS1G) and UT6 (25Q80DVSIG)
I was trying to clip the UC6 (25B127DS1G) to CH341 but is not recognized. I was trying attaching wires and the same.

I am not sure CH341 is good enough to read the BIOS and post it here. Please share a better tool to do the job.

Model: Dell Latitude 5400
Reg typr No: P98G001
Board: EDC41LA-G891P
REV: 1.0 (A00)
SERVICE TAG: 7404yy2 or 74o4yy2 (not sure )

Thanks

**hoaca388** · 10-25-2024, 03:01 AM

Originally posted by moshu

Hi all,

I was reading all 35 pages but is not clear to me if is really need it to remove the chip/chips from the motherboard.
One fact is clear that I cannot read the chip if is on the motherboard using CH341 programmer, because once I connect the wires to programmer, programmer is not recognized by the Windows unless I've attache the power supply to the motherboard I am reading the BIOS chip. Even that I am getting an error like chip is not recognized
Motherboard have a UC5 (25B64CYiG) and an UC6 (25B127DS1G) and UT6 (25Q80DVSIG)
I was trying to clip the UC6 (25B127DS1G) to CH341 but is not recognized. I was trying attaching wires and the same.

I am not sure CH341 is good enough to read the BIOS and post it here. Please share a better tool to do the job.

Model: Dell Latitude 5400
Reg typr No: P98G001
Board: EDC41LA-G891P
REV: 1.0 (A00)
SERVICE TAG: 7404yy2 or 74o4yy2 (not sure )

Thanks

Because it is a cheap SPI programmer, the CH341A sometimes does not work well with clips

**moshu** · 10-25-2024, 12:08 PM

Originally posted by hoaca388

Because it is a cheap SPI programmer, the CH341A sometimes does not work well with clips

Thanks for your replay.
Looks like I have 2 options , either to buy another programmer or buy a hot air station or both.
Please recommend another programmer to buy and a budget hot air station to buy.
Links would be preferable.

Thanks

**ifixeth** · 10-28-2024, 09:10 AM

Dell Latitude 5400 Bios password
LA-G891p
32mb
Please!! Please Remove password or extract password from bin!!! Please

Attached Files

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GD25B256D@SOIC8.rar (11.23 MB, 5 views)

**GB1999** · 10-28-2024, 11:21 AM

Dell 5400 edc41 la-g891p rev 1 16mb bios dump
please remove bios lock
service tag:2T3C5Y2

thanks in advance

Attached Files

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LA-G891P REV 1.rar (6.92 MB, 7 views)

**rex98** · 11-06-2024, 07:53 PM

Originally posted by GB1999

Dell 5400 edc41 la-g891p rev 1 16mb bios dump
please remove bios lock
service tag:2T3C5Y2

thanks in advance

upload the 8mb.

**mactouch** · 11-20-2024, 12:05 AM

I need bios for la-g862p rev : 1.0 latitude 5400
it is working but somebody changed before .

only turning on after 30sec
SN: 9CS6063

Attached Files

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bios.zip (11.88 MB, 2 views)

**SMDFlea** · 11-20-2024, 04:16 AM

Originally posted by mactouch

I need bios for la-g862p rev : 1.0 latitude 5400
it is working but somebody changed before .

only turning on after 30sec
SN: 9CS6063

Have you tried cleaning the ME firmware https://www.badcaps.net/forum/troubl...22#post1622422

**moshu** · 11-22-2024, 03:22 PM

Hi all,

please help to remove pasword on below 5400.
I've tryed
1- Select the range 00045000 to 00048fff
2- Select "Edit" then "Fill"
3- Put "ÿ" in "Pattern" zone.
4- Choose "Fill selection" then clic on "Fill" button.
5- Save the new file."

but laptop didnt start

Model: Dell Latitude 5400
Board: EDC41LA-G892P
REV: 1.0 (A00)
SERVICE TAG: 9QGW3Z2-8FC8
read one CHIP GD25Q256DY1G

Thanks

Attached Files

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9QGW3Z2.ZIP (11.49 MB, 7 views)

Dell Latitude 5400 Bios password

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