Important CMOS Battery out
Flash
Power in
CMOS battery in
test on


# list devices
flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=1000

# wget custom firmware
Look at sources in browser: https://github.com/MrChromebox/scripts/blob/master/sources.sh

```wget <Full ROM base path><device specific filename>```

Example for CN60: 

```wget https://mrchromebox.tech/files/firmware/full_rom/coreboot_tiano-panther-mrchromebox_20220409.rom```

# modify custom firmware by pulling macaddress from old firmware

```wget https://mrchromebox.tech/files/util/cbfstool.tar.gz && tar -zxf cbfstool.tar.gz```
get tool chmod +x if you have to

extract rom from original device
sudo ./flashrom -p ch341a_spi -r badflash.rom

extract vpd.bin from badflash.rom
./cbfstool badflash.rom extract -n vpd.bin -f vpd.bin

inject VPD to firmware image to be flashed
./cbfstool <Full ROM filename> add -n vpd.bin -f vpd.bin -t raw

# Flash firmware
flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=1000 -w coreboot_tiano-panther-mrchromebox_20220409.rom

# Verify Flash
flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=1000 -v coreboot_tiano-panther-mrchromebox_20220409.rom