04-06-2019, 11:54 AM
Yeah the eeprom is on the boards, the Due doesn't actually have an eeprom, rare for an Arduino. You only need to run the pre-update if you don't have a v5.x running. That was needed because v4.2 used an eeprom location that had a setting store and put the v5 in a never ending loop, that's why it doesn't startup. If you already have say 5.06 running then you don't need to this again or in the future.