Ok so I got two different result on two consecutive tries.
This was the first one:
On the second go doing the same thing I got no change in output, just the same no device found messages.
Yes it is generally just flashing a second or two then stops. I had it plugged into my PC for half a day yesterday.
Should the light come on when it is charging? It doesn’t when plugged into my computer. Would it be better to plug straight into a wall socket converter?