How to update firmware version
If you connect your drone to Bonadrone platform and a message like shown below appear it means that you must update your firmware version to continue using the drone. 
In order to update the flight controller firmware to the last version you have to follow the next steps below:
- Disconnect the fc from Bonadrone platform
- Maintain pressed the fc button with name "BTN" has shown in the image below
- Connect via USB the FC to Bonadrone platform
- Platform will check if there is a new version available and if some new version exsits the following message will be shown
- Press "OK" to start the update automatically or Press "Close" to discard it
