Last night I updated to Brewblox release 2021/03/09 via
brewblox-ctl update, followed by using the freshly-updated UI to agree to flash the Spark, followed by what appeared to be a flash success, followed by an invitation to flash again (which quickly failed), followed by a CLI command to
brewblox-ctl flash. Then nothing but crickets from the Spark.
I go downstairs to check on it and the Spark is lifeless: no screen activity, no LEDs, no amount of unplugging the 12V power barrel or the USB connection to the RPi makes any difference. I took apart the case and have held in both the reset and the setup buttons, still no life.
Is my Spark bricked? It has worked flawlessly for 2+ years, over several software and firmware flashes.