Always take a
backup of your settings
before upgrading.
Sometimes upgrades change flash offsets, which can corrupt the filesystem. If this happens, clear
flash, re-upload the firmware, and restore the backup of your settings.
Download firmware binaries from the
GitHub releases page.
Check for a new version by clicking on the "Check for Updates" button.
Make sure the binary you're uploading was compiled for your board!
Firmware with incompatible settings could prevent boots. If this happens,
reflash the board with USB.