For single pair update, using the Google Chrome web browser on a Bluetooth compatible computer, visit https://ozoblockly.com/editor?lang=en&robot=evo&mode=2 and connect Evo to your computer using a micro USB cable. Ensure that only one Evo at a time is connected to power or powered on:
- The first update is to the firmware, once completed you have to reconnect.
- The second update is to the BLE Chip, once completed you have to reconnect.
- The final update is for the Assets, once completed Evo should stay connected for Ozobot blockly programming.
https://ozobot.com/blog/updating-your-evo-robots-with-ozobot-blockly-2022