Waltibaba · December 10, 2016 12:30
diff --git a/flash t420 coreboot b/flash t420 coreboot
 #find which mem chip exactly it is (in flashrom's internal naming scheme - the real chip is the 6406E, but flashrom combines it with the 6408E)
 flashrom -L | grep MX25L

 #read 
 flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=512 --chip MX25L6406E/MX25L6408E -r romread1.rom
 #read a few times and compare with 'diff' to be sure read didn't have errors, just in case you have to flash back
	#find which mem chip exactly it is (in flashrom's internal naming scheme - the real chip is the 6406E, but flashrom combines it with the 6408E)
	flashrom -L \| grep MX25L

	#read
	flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=512 --chip MX25L6406E/MX25L6408E -r romread1.rom
	#read a few times and compare with 'diff' to be sure read didn't have errors, just in case you have to flash back