Edge Box Re computer alternative firmware

Is there a way to flash alternative firmware in the emmc of the edge box ?
I would like to try home assistant on this.

Hi, here is the method of Raspberry PI CM4 flash EMMC. Although they are different products, they all use Raspberry PI CM4 as the motherboard, so you can refer to it

Thank you but no, I can’t refer to this method beacause it’s not the same motherboard and there is no switch to flash emmc of CM4.

Did anyone figure out what to do about this?
There are no jumpers or switches on the motherboard to allow re-flashing! What should we do?

Hi, you can update the CM4 firmware eeprom to the latest first, then you can boot another RPI OS from USB and then use dd to refresh emmc