I am troubleshooting a pro mini with Serial problems, so I started using "upload using programmer" and there is something I don't understand with the process.
I use Minicore with those fuse settings: 0x62 0xD6 0xFF. If I understand correctly the "IDE way" is to first burn the fuses by selecting "Burn bootloader", and then to upload the sketch using "Upload using programmer"?
My programmer is Arduino as ISP, and both operations complete successfully; however if I then run Nick Gammon's board detector I get this output: "Using bootloader: Yes"
I understand that the fuses were burnt as part of burning a bootloader, but doesn't that create a problem if I later upload a sketch w/o a bootloader?
A fuse calculator shows that my fuses currently correspond to:
Boot flash section size=256; Boot start address = $3F00; BootSZ=11 Boot Reset vector enabled (default address=$0000)
... aren't those settings a problem when there is in fact no bootloader in flash?