Running main.py from SD card on OpenMV Cam H7 Plus?

Hey, sorry for resurrecting this thread.

The marked solution doesnt work for me. I have a new H7 plus cam and tried 4 different SD cards. I also tried different formating programs on windows (the standart one, rufus, the one from sdcard. org mentioned here). I also tried different formats (exFAT and FAT32) and even got a mac and tried with the exact same settings as shown in the screenshot above.
One of the SD cards I tried is a new Samsung Evo Select (2024) 128GB - I saw that people recomended that model, for example in this thread.
Firmware on the cam is 4.7.0 - the most current one as of today.

What I do after formatting:

  • Put a “main.py” file with some basic content onto the root of the SD card
  • Put the SD card into the camera
  • Plug the camera with USB into the computer

What I expect:

  • To see the SD card file system in the windows file explorer (128 GB)
  • An openmv_disk file be created on the SD card

What actually happens:

  • The cam blinks a couple of times rapidly green
  • Blinking stops
  • The internal flash is mounted (111KB free space)

Is there anything I am missing? Anything I need to do, forgot or am doing wrong?
Any suggestions what I can try? Is there a chance the cam module is defect?

Any help appriciated.