@Scavy
I've had the same Idea (Power supply) and asked about this in my first Post here

@alvin said in Recabox broken after upgrade, how to fix it?:

@ayskura
Did you check the Powersupport to your Pi ?
Sometimes the Pi won't boot if he doesn’t get enough Power.
Is there maybe a yellow Flash in one of the upper corners ?

and ayskura relyed
"...and there is plenty of power for the raspberry pi, I was using it well until I updated."