1# 51NB X210 2 3## Extracting vendor EC firmware 4 5EC firmware is included in the SPI image. To extract it, run: 6 7``` 8dd bs=64K skip=32 count=1 if=bios.rom of=ec.bin 9``` 10 11and ensure that you have a file that includes the string "Insyde Software Corp". 12 13## Flashing instructions 14 15This can be performed using the internal SPI controller, even when flashing 16from stock firmware. Use `flashrom -p internal` and follow the appropriate 17flashrom instructions to force it. Alternatively, external flashing has been 18tested with Dediprog SF100 and SF600 and using a Beaglebone Black. The flash 19is located on the upper side of the motherboard, below the keyboard 20connector. It is circled in red here: 21 22 23 24## Flashing a subset of the ROM 25 26If you want to flash coreboot without extracting firmware blobs, you can 27flash coreboot without overwriting those blobs. After building coreboot, 28create a layout file with the following content: 29 30``` 3100000000:001fffff me 3200200000:0020ffff ec 3300210000:007fffff main 34``` 35 36and run flashrom with the `--layout rom.layout --image main` arguments. This 37will flash the main firmware without overwriting the existing EC or ME 38firmware. 39 40## Working 41 42All hardware features are believed to be working, although the SD reader is 43untested. Note that certain hotkeys don't work (including the ThinkVantage 44button) - this is a limitation of the EC firmware, and these keys also 45generate no events under the stock vendor firmware. 46 47
