$ sudo flashrom -r DZCN19WW.original.ROM
flashrom v1.2 on Linux 5.4.0-58-generic (x86_64)
flashrom is free software, get the source code at https://flashrom.org

Please select a programmer with the --programmer parameter.
To choose the mainboard of this computer use 'internal'. Valid choices are:
internal, dummy, nic3com, nicrealtek, gfxnvidia, drkaiser, satasii, atavia,
it8212, ft2232_spi, serprog, buspirate_spi, dediprog, developerbox, rayer_spi,
pony_spi, nicintel, nicintel_spi, nicintel_eeprom, ogp_spi, satamv, linux_mtd,
linux_spi, usbblaster_spi, pickit2_spi, ch341a_spi, digilent_spi, stlinkv3_spi.

$ sudo flashrom --programmer internal
flashrom v1.2 on Linux 5.4.0-58-generic (x86_64)
flashrom is free software, get the source code at https://flashrom.org

Using clock_gettime for delay loops (clk_id: 1, resolution: 1ns).
Found chipset "AMD FP4".
Enabling flash write... FCH device found but SMBus revision 0x51 does not match known values.
Please report this to flashrom@flashrom.org and include this log and
the output of lspci -nnvx, thanks!.
Could not determine chipset generation.PROBLEMS, continuing anyway
========================================================================
You seem to be running flashrom on an unknown laptop. Some
internal buses have been disabled for safety reasons.

Laptops, notebooks and netbooks are difficult to support and we
recommend to use the vendor flashing utility. The embedded controller
(EC) in these machines often interacts badly with flashing.
See the manpage and https://flashrom.org/Laptops for details.

If flash is shared with the EC, erase is guaranteed to brick your laptop
and write may brick your laptop.
Read and probe may irritate your EC and cause fan failure, backlight
failure and sudden poweroff.
You have been warned.
========================================================================
No EEPROM/flash device found.
Note: flashrom can never write if the flash chip isn't found automatically.