One more case to create a white screen issue. From my point of view, if not solved by previous sugestions (holding buttons, reseting connectors, draining battery), the cuase of the white screen is a open circuit.
While replacing the screen it will be necessary to bend the circuit board to connect the new screen. In my case I did not noticed that the flex cable controlling the volume and power button was broken.
After replacing the cable a assembling all the parts, the white screen work perfectly.
In some cases I had also short circuit the battery connectors with the home button, and the ipod came to life again.
Has anybody gone through a similar scenario and/or solutions ?
My advice, checks all components twice.
JM - Montreal