A Xenon flash will cause the Raspberry Pi 2 to freeze
A xenon tube is a spark gap.<p>If there's anything in this world noisier than a spark gap, I don't know what it is.<p>I think the first radio transmitters were spark gaps.<p>The energy flies thru the air, and is coupled onto the power line.<p>The power supply doesn't cope well with the oscillations, and hiccups.<p>I see the notes about U16 being photosensitive, but if it is a black epoxy like most IC's, I'm not buying that light gets into it.<p>It's possible that blue tack shields the EMP a bit.