Good story. I've come to realize software almost always gets the initial blame. Software is almost always the one painting the error screen. So even if it says

Good story. I've come to realize software almost always gets the initial blame. Software is almost always the one painting the error screen. So even if it says "Voltage out of range", someone is going to accuse software of not working. So they pull you into the lab, watch you open the box, probe it with a multimeter, show that the voltage is out of range, and then get the hardware engineer. I once spent over a month (nights & weekends) tracking down a memory corruption bug. Everyone accused software of course. It turned out to be poor signal integrity on the memory bus (hardware problem). It was horrible.