A few updates for someone who happens upon this thread: - Be sure to flash via the ESP board's USB-C. Do not use the board USB-C as this is for power only. The

A few updates for someone who happens upon this thread: - Be sure to flash via the ESP board's USB-C. Do not use the board USB-C as this is for power only. The docs are actually pretty clear here, but it's worth mentioning. - It doesn't matter if you have a Pro DIY or Pro DIY Pre-Soldered, flash the image corresponding to the actual position of the OLED. Lower right OLED: https://www.airgradient.com/open-airgradient/instructions/diy-pro/#software https://www.airgradient.com/open-airgradient/instructions/di... Upper left OLED: https://www.airgradient.com/open-airgradient/instructions/diy-pro-presoldered/#software https://www.airgradient.com/open-airgradient/instructions/di... - Your serial number is just the hexadecimal after the "AG-" or "AirGradient-" designation of your unit (eg. "206d86"). Mine was "AG-" which doesn't match what the docs say. Use this 6 or however many hexadecimal serial number to add the unit to the Dashboard. It seems to fail after the first update if you include the "AG-".