Warning: Do not attempt to upgrade Betaflight versions without following these instructions! A complete guide with illustrations is available in the Education Shared Google Drive for partner organizations.
Betaflight is a free open-source flight control software. It has two distinct parts.
FIRMWARE is the code within the drone’s flight controller itself. Do not change this if your drone is working.
CONFIGURATOR is the desktop app that provides a graphical interface to modify the firmware. This is safe to upgrade and 10.8 is recommended for all users.
Where to download the Betaflight Configurator 10.8:
Betaflight Firmware version 4.3 REQUIRES the latest Configurator Version 10.8 to function.
Warning: If you are utilizing Chromebooks, DO NOT UPGRADE YOUR FIRMWARE. The outdated Google Plugin of Betaflight Configurator is 10.4 and you must use Firmware 4.2. There is a way to revert new 4.3 drones back to 4.2.
Backups of the factory settings are available at in the Settings Folder. You can save these settings as a .txt to your computer (using save link as, or copy the code into Notepad, TextEdit, or another editor and save as a .txt file).
More information on upgrading the Betaflight Firmware for your drone is available here: https://www.dronesoccer.us/blog/tips-tricks-2/upgrading-firmware-to-4-3-20