Restoring the factory bootloader
Install the serial cable
Install the serial cable as pictured connecting header ZH2 RX and TX to header Screen1 TX and RX
Install the DFU jumpers
Boot0 jumper inserted
Boot1 jumper inserted on the pins to the right side.
Connect USB cable to the Fly-Gemini V2
Connect the Fly-Gemini V2 to your PC using the SBC USB C port.
Flash the bootloader
- Using Putty open a telnet session to the CH340 com port.
- Run the following stm32flash command in the telnet session.
stm32flash -w /root/.BL/Gemini_v1.1_BL.bin -v -g 0 /dev/ttyS2
Wait for the flash to complete Add screen shot of flash complete
- Shut down the Fly-Gemini V2
- Disconect the USB cable, remove both boot jumpers and the serial cable.