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bds

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Need bios files.
Lenovo thinkpad p52 (type 20ma)
Model: 20mas1ef00

Bricked after bios upgrade

U9:
The dumps from this chip were successful and consistent after comparing them.
Found Macronix flash chip "MX25L25635F/MX25L25645G" (32768 kB, SPI)

U29:
The dumps from this chip were successful but after 5 dumps all files were different.
Setting spispeed to 1M software can identify chip.
serprog: Programmer name is "pico-serprog"
Found Winbond flash chip "W25Q80.V" (1024 kB, SPI) on serprog.

Dumps from both chips are in zip.

what is the u29 chip used for?
I currently do not need password removal.

Please let me know if you need more information.
 

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20mas1ef00-bios.zip
10.1 MB · Views: 0

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