No OS will boot on new mainboard

[rohtua]

That said I've come to it this morning and tried turning it on and its booted straight away. I've not done anything too it literally just picked it up and pressed the power button and its switched on. Very bizarre I tried flashing the image several times yesterday and nothing happened. Yet this morning its working and nothings changed. Its still on the same image I out on it yesterday which didn't work.

I run Mobian from eMMC and sometimes nothing boots and the LED is solid green. It almost always works on the second try. I agree that this behavior is very bizarre.

I had no LED nothing it was dead unless I was booting jumpdrive