after charging will not power up, screen went white, whats up?

Apple seems to have a "white screen problem" with at least some iPods.

It was found at different models (touch, nano, ...) yet.

<White screen after changing rear panel>.

Mine is a 2.Gen iPod nano.

As far a I understood it looks like a problem with electric isolation between the circuits and the housing.

Before ordering and installing spare parts try to run your device without housing.

Would be cool to hear if that works for you.

I have fixed the white screen problem multiple times (both with nano 2nd Gen and 4th Gen models) by removing the battery and leaving the iPod battery-less for a couple of minutes. Although the white screen problem is frequently a problem with the display, sometimes it seems to be a problem with the mainboard getting into a state it can't get out of unless power is removed completely. A hard reset using the clickwheel (menu and enter pressed at the same time) doesn't do the trick in those cases.

I had a white screen problem also. A close inspection with a magnifying glass revealed that I tore the rightmost edge (the image is upside down) of the display ribbon cable, and this is why the display turned white.

The ribbon cable is fragile, tiny, really impossible to repair by soldering. I thought about using this Nano without a screen (somewhat like my iPod Shuffle) but ended up putting in a different screen that I happened to have on hand. It seems to be fully functional!