LUMO Update - How to install - Apple/Mac

1 - Connect a USB-C cable into your computer’s USB port.  The included USB-C cable is ideal.  If not using the included cable, make sure the cable is not a power-only cable and has data lines, most cords included for devices that only need charging (flashlights, earbuds, etc.) don’t include data lines. Cell phones, USB hubs, any cable that came with device needing more than just power will have them.
2 - Download the firmware file from https://www.reveni-labs.com/lumo-firmware-updates

3 - Turn off the meter if it is on

4 - Hold down the right button while inserting the USB-C cable into the meter’s USB port.

5 - When prompted on the LUMO screen, release the right button and hold the left button

6 - Release the left button after the screen goes black.  A storage device called “RPI-RP2” should appear on your Mac’s desktop and in your Finder.

7 - Press Command + Spacebar to open Spotlight Search.  Type in “terminal” and press the Tab key.  The Terminal window will open

8 - Type or copy/paste into the terminal line cd downloads and press Return.  If prompted to allow “Terminal” to access your downloads, click Allow.

9 - Type or copy/paste the line cp -X lumo_v1.9.uf2 /Volumes/RPI-RP2 into the terminal and press Return.  Adjust the command to match the filename of the firmware version you are trying to load.

10 - If a prompt requesting access appears, click Allow.

11 - The file will be transferred and the meter will be automatically disconnected.  Ignore any message about “Disk Not Ejected Properly”.