Okay you can try this http://www.zolved.com/synapse/view_conte... and see if it works. I do know that this generation has issues with the logic board, but that usually manifest itself in another way. If this should not resolve the issue, I'd disassemble it and check the connection from the logic board to the LCD for corrosion and/or water damage. Also, of course make sure that all your connection are seated properly. Hope this helps and let us know....good luck

May be too hot or cold(device).

1) warm it up for 5-10 min.(cover it with something warm)

2) lock and unlock switch 2 times. Hold same time (home+select)

3) when it restarts(when screen turns black, immediately hold the Play/Pause button for +10 seconds.

Cold

1) put in refrigerator for 3 min tops and do the same thing.

:)