* It doesn't seem to work; For my board the blue LED is at PE3

my chip still has the bootloader https://gist.github.com/bsodmike/0922319b51a38c46014765d26fcbb8dc

I'm uploading the bin file with `sudo dfu-util -a 0 -d 2341:0366 -s 0x08040000 -D *.bin`

The bootloader starts at 0x08

Any ideas, have I missed something obvious?