Your first update

On the right-hand side, the lower switch turns on your badge

When you first power on your Fri3d badge, you can choose to update the firmware "over the air" (OTA) use the "X" and "Y" buttons to move between buttons on the screen

use the "X" or "Y" button to confirm that you want to go online. This only works on the Fri3d Camp network

Select the newest version -- newer is always better, right? ;-)

There are different partitions. The badge will check each and update if necessary. This may take a while.

After the update, the badge will restart spontanuously

After the update, the option "hardware test" will no longer be available and the option "MicroPython" will have appeared

Your badge is now upgraded to the (current) latest firmware