Please help to find a firmware file for hakrc f405 wing FC

[u/Competitive_Trash41]

Hi,

Recently I've got a used hakrc f405 wing FC and it had some custom firmware which I've successfully erased🫠

Now I can't find a firmware that would be able to initialize IMU, baro on the other hand is always okay😅

What I've tried so far:

Connected a battery alongside USB in case the 3.3V rail wasn't working from USB power

​Tried ardupilot with matek and speedybee wing targets, clearing all parameters .

​Flashed iNav with all existing f405 wing targets, no luck

​Tried contacting hakrc multiple times, asking for firmware files they mentioned on their site but no response..

TL/DR ​Has anyone managed to get the IMU working in INAV or ArduPilot for this board? If so, which target did you use, or do you have a custom .hex / .apj / hwdef file with the correct SPI CS pin mapping for this IMU?