I have two APU1C4 with 16GB mSATA board to be used for pfSense.
One of the two worked straight aout of the box, the other obne makes my bang my head against the wall.
It does not accept any keyboard inputs via the serial console. Attaching a usb-keyboard works sort of, but not always.
E.g. it stops working at the second question of the pfSense installer. Since installation of the other box worked fine,
it can't be an issue of the serial connection.
I tried both bios versions apu140401.rom and apu140405.rom, it makes no difference.
Is the board broken? Shall I send it back or am I missing something important?