46 lines
1.4 KiB
Markdown
46 lines
1.4 KiB
Markdown
# 51NB X210
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## Extracting vendor EC firmware
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EC firmware is included in the SPI image. To extract it, run:
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``
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dd bs=64K skip=32 count=1 if=bios.rom of=ec.bin
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``
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and ensure that you have a file that includes the string "Insyde Software Corp"
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## Flashing instructions
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This can be performed using the internal SPI controller, even when flashing
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from stock firmware. Use flashrom -p internal and follow the appropriate
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flashrom instructions to force it. Alternatively, external flashing has been
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tested with Dediprog SF100 and SF600 and using a Beaglebone Black. The flash
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is located on the upper side of the motherboard, below the keyboard
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connector. It is circled in red here:
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## Flashing a subset of the ROM
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If you want to flash coreboot without extracting firmware blobs, you can
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flash coreboot without overwriting those blobs. After building coreboot,
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create a layout file with the following content:
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```
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00000000:001fffff me
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00200000:0020ffff ec
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00210000:007fffff main
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```
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and run flashrom with the "--layout rom.layout --image main" arguments. This
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will flash the main firmware without overwriting the existing EC or ME
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firmware.
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## Working
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All hardware features are believed to be working, although the SD reader is
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untested. Note that certain hotkeys don't work (including the Thinkvantage
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button) - this is a limitation of the EC firmware, and these keys also
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generate no events under the stock vendor firmware.
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