Will it ever be possible to flash flashcast and or the Eureka rom to a chromecast that has been updated? I have a rootable serial number but updated before knowing about any of this and it sucks.
Sorry, not at this time.
If/when a method to flash units with firmware newer than 12072, it should apply to all units, as it's really the firmware build that matters. The serial number just gives a reasonably good indicator of whether it comes with the original 12072 firmware build.
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