BIOS Dell Lattitude 5420 main GDF40 LA-K491P rev: 2.0

COCO21 said:

sir please rebuild this bin problem is no display

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HungPro said:

ALT + F t

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HungPro said:

anh biuld lại giúp em với. máy cứ bắt nhập STag miết . nhập xong khởi động lại cứ bắt nhập lại

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HungPro said:

bản biuld này không kích dc nguồn anh ơi

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MANISH_3 said:

pls build my bios it has no power but with otherbios it starts but auto off suddenly

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acelaptopfix said:

fix dùm e không kích đc nguồn ạ - file trên tus thì có nguồn nhưng lên logo dell xong sập không kích lại đc nữa

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TheMotherboards said:

Por favor, construye mi BIOS, no tiene energía.

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malek malek said:

I have a Dell Latitude 5420 (tested without HDD) and I’m running a diagnostic tool such as Aiken Workbench. The problem is that the tool detects the onboard LAN card, but it shows the message:




Interestingly, when I install Windows, the LAN card works perfectly fine, which confirms that the hardware itself is okay. I have tried multiple cables and diagnostic environments, but the result is the same.


For comparison, I have a BIOS dump from a working unit and another from the problematic unit. The file sizes are identical. I suspect the issue might be related to a missing or corrupted PXE/UEFI network driver module in the firmware.


My questions:

• Has anyone experienced this issue before?
• What are the recommended steps to add the proper LAN driver to a diagnostic/WinPE environment, or to safely repair the firmware?
• If no solution can be found, I would appreciate it if any expert who knows how to fix this fault could contact me privately to suggest the right approach.

Thank you in advance for your help.

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malek malek said:

Make a bios that can work fine as a Joker file

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MANISH_3 said:

with this no power pls give ok bios because with other it on but off suddely

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