I think that’s usually the case: that will be stored in a small 24c or 93c (i2c or SPI) chip that is separate from the firmware that may only handle 1000 flashe

I think that’s usually the case: that will be stored in a small 24c or 93c (i2c or SPI) chip that is separate from the firmware that may only handle 1000 flashes and takes a lot longer to flash (often requiring risky and long downtime).