Ah ha! Thanks for sharing about SoftRF.
I just went through the SoftRF source and found that they use the minimal spiffs partition scheme. This gets us in the right direction.
This means that we need to figure out how to change the partition table of your board.
I think you mentioned you were able to get platform io running. Could you try running 'erase flash" and then re-upload the firmware? I don’t know if this will update the partition table, but it’s worth a shot.
Also, since you’re in platform io, to get the serial / debug console:
