Overview
This page covers how to reflash the bootloader on a Fly-Super8Pro H723.
Software
These instructions cover flashing with Windows using the STM32CubeProgrammer software. It is possible to use other software, such as DFU-Utils on linux, but they aren’t covered here. You will have to register to be able to download the software.
Connection via DFU
Install the jumpers as shown in the image below, before plugging in the USB cable into the board and PC.
Process
Launch the STM32CubeProgrammer Software.
Download the bootloader from here.
Select the correct connection method, in this instance its “USB”. You may need to click the refesh button to find it. Then click connect.
Then click on the “+” icon and find/open the bootloader file you downloaded earlier.
Click the “Download” button.
A “File Download Complete” popup will appear once complete.
Disconnect the board and remove the jumpers before continueing to flash the firmware as normal.