flashrom

Read, write, verify and erase flash chips. More information: https://manned.org/flashrom.

• Probe the chip, ensuring the wiring is correct:

flashrom --programmer programmer

• Read flash and save it to a file:

flashrom -p programmer --read path/to/file

• Write a file to the flash:

flashrom -p programmer --write path/to/file

• Verify the flash against a file:

flashrom -p programmer --verify path/to/file

• Probe the chip using Raspberry Pi:

flashrom -p linux_spi:dev=/dev/spidev0.0