My X1 Carbon Gen 1 Coreboot rom
First time install: With a soic8 (Pomona), a ch341a
sudo flashrom -p ch341a_spi -w x1_carbon_MX25L3273E_coreboot.rom -c "MX25L3273E"
For internal flashing:
sudo flashrom -p internal:laptop=force_I_want_a_brick -l x1c.layout -i bios -w coreboot.rom
For further instructions and to build your own coreboot rom, read: https://www.coreboot.org/Board:lenovo/x1_carbon_gen1