, great that you solved this before I managed to even respond
and also sorry for not responding (soon enough) - I don't get much to computer during the weekend (wife, kids), I tend to respond better during working days when I'm at work and at computer...
One of the things I would recommend wold be that other USB power supply, other USB cable (it solved the issues many times now without replacing the USB power supply), then reflashing the firmware chips if the first didn't help. You managed to find this out and do it your self, congrats
It's bad to see that the new RPi 3 is now so power hungry, while the RPi 1 and RPi 2 are hard to get new (they are obsolete now). I was trying to avoid transition to Raspbian and to newer RPi 2 and RPI 3 as long as I could, but now I had to - you just can't buy a couple of new RPi 1, plus many people wanted RPi 2 or RPi 3 because it's new, fast, and so on, even if it doesn't offer any benefit now in CE yet (the mp3 playback runs on RPi 1, and there's no video playback yet, but one day there might be