Dump from SPI flash

[BigNerd95]

I'm trying to dump the SPI flash for education purpose
I'm using a CH431A MiniProgrammer and flashrom

Flashrom always return "No EEPROM/flash device found.":

flashrom v1.2 on Linux 5.15.0-47-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).
No EEPROM/flash device found.
Note: flashrom can never write if the flash chip isn't found automatically.

How did you dump the flash?

[danry25]

My dump isn't a full dump. I connected via the serial headers and just copied all visible files from the device.