Please report this to [e-mail] and include this log and the output of lspci -nnvx, thanks!.

sudo flashrom --programmer internal
flashrom v1.2 on Linux 5.8.0-23-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 0x61 does 
not match known values.
Please report this to [e-mail] and include this log and
the output of lspci -nnvx, thanks!.
Could not determine chipset generation.PROBLEMS, continuing anyway
No EEPROM/flash device found.
Note: flashrom can never write if the flash chip isn't found 
automatically.

please check