Jjrc X9 PX4 FMU v4

yes, i need please send immediately…

Hi I have a cfly dream got 4 red solid lights can you please advise on how to wire up the flight controller to a stlink so I can try and flash it just to see if it fixes my problem.
Thank you
Darren

Can you advise me please how to connect the 4 wires to the flight controller from the stlink.
Thank you.

Hi All,

The backup step in GitHub - blenderlab/JJRC-X9: firmware images for the JJRX X9 - HERON just reads 256 bytes (0x100) from the flash device memory starting address 0x0800_0000, not the entire (user)flash device. Entire flash device memory size is 1048576 bytes. I don’t think this is backing up.

image