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BIOS LATITUDE 3420 LATITUDE 3520 cyborg L 15 TGL 213277-1

Hello,
I have Dell Latitude 3520 and I flashed unlocked bios, now there is no power, led goes orange when I clic power button.
I flashed the original bios back, but same thing, no power.
The original and unlocked bios are attached.

[Edit]
I noticed that the files I attached are exactly the same ! I messed up unlock I think.
By the way, the dump was extracted from the WSON8 Aj2128 chip. Service tag is provided (see attached pictures).

Can you help me please ?
Regards,
 

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IMG_20260310_145244.jpg IMG_20260311_000015.jpg
original_latitude_3520.bin
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unlocked_latitude_3520.bin
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Last edited:
mskdk said:
Hello,
I have Dell Latitude 3520 and I flashed unlocked bios, now there is no power, led goes orange when I clic power button.
I flashed the original bios back, but same thing, no power.
The original and unlocked bios are attached.

[Edit]
I noticed that the files I attached are exactly the same ! I messed up unlock I think.
By the way, the dump was extracted from the WSON8 Aj2128 chip (see attached picture).

Can you help me please ?
Regards,
Click to expand...
so check the hardware i think you did something wrong when backing up the bios
 
ThienBui said:
so check the hardware i think you did something wrong when backing up the bios
Click to expand...
Hello,
Thank you for your answer.
I presume that my bios backup is bad then.
I did not make another backup because the Neoprogrammer software indicated reading success.
Is there anyway to flash a fresh bios on my machine ? From an official dell bios update file for example?
 
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