My ipod shows only white screen when i disconnect it from my laptop. when its connected its black it shows nothing.

Hi silk 33...

White Screen of Death
This is probably caused by not allowing the firmware update to finish the installation before disconnecting the iPod.
Try these steps.
Reset the iPod:
1.Turn the Hold switch on, then back to off.
2.Press and hold the Menu and Select buttons for 10 seconds (until the Apple logo appears).
3.You may need to repeat the reset several times.
If the reset doesn't help, then put the iPod into forced disk mode.
Put iPod into Disk Mode:
Apple suggests that you ensure your iPod is charged before following
the next step. How exactly you check a charge on an iPod screen that
is completely white has yet to be revealed. But hey, give it a shot
anyway. Plug the iPod into a high-powered USB port, let it sit for 2 hours, then disconnect it. If you have a wall charger, plug in the iPod, then follow these steps while it is still plugged in.
1.Turn the Hold switch on, then back to off.
2.Press and hold the Menu and Select buttons until the Apple logo appears
3.Immediately switch your figures to press and hold the Select and the Play/Pause buttons until "Disk Mode" appears at the top.
For a lot of people, this solves the problem. Connect the iPod to the computer and (assuming it shows up) reset the iPod again to get it out of Disk Mode.
If at this point you still have the white screen,
restore the iPod using the restore function in iTunes under the Summary tab (this will erase everything on the iPod and put it at factory
settings).
Don't disconnect or eject the iPod until the store is totally done.
After you think it's done, wait another five minutes.
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that happened to mine once i think i just let it charge...but u have to unlock it

put it in DFU mode while connected to the computer. to do this, hold the home and power buttons for 10 seconds and then let go of the power but keep on holding the home for 10 secs. the screen will be black and nothing will show up. go to itunes and click on your ipod on the left. then click restore. this should work.

Completely white? No icons or "sad" ipod symbol?

Static buildup will make the ipod screen pale white/grey. If it were a black screen, I'd say update and reformat but static kills the unit.

Hold down the middle and menu buttons at the same time for about 10 seconds. this will restart the ipod.

hope this helps and good lcuk!
Jaxon

try the steps in this website:

http://www.zolved.com/synapse/view_content/19067

try this page
http://www.fixya.com/support/r561901-ipod_problems_start_5_solutions

note in the end of my post there is the online service assistant where you can check your warranty and setup repairs with apple if required.

hold the menu and center button for 25 seconds.
That will reboot it without damaging your data.

hold the center button and the menu button until the screen goes black. then hold center and play until the screen goes white and says "OK to disconnect". The ipod has now been forced into disk mode and should now sync. Once you have it connected to itunes, try restoring the ipod to fix the problem forever. If the ipod still will not sync in disk mode, try some of the USB tests in diagnostic mode (info here)

Reset the iPod:

1. Turn the Hold switch on, then back to off.
   
2. Press and hold the Menu and Select buttons for 10 seconds (until the Apple logo appears).
3. You may need to repeat the reset several times.

If the reset doesn't help, then put the iPod into forced disk mode.


Put iPod into Disk Mode:

Apple suggests that you ensure your iPod is charged before following the next step. How exactly you check a charge on an iPod screen that is completely white has yet to be revealed. But hey, give it a shot anyway. Plug the iPod into a high-powered USB port, let it sit for 2 hours, then disconnect it. If you have a wall charger, plug in the iPod, then follow these steps while it is still plugged in.

1. Turn the Hold switch on, then back to off.
   
2. Press and hold the Menu and Select buttons until the Apple logo appears
3. Immediately switch your figures to press and hold the Select and the Play/Pause buttons until "Disk Mode" appears at the top.

For a lot of people, this solves the problem. Connect the iPod to the computer and (assuming it shows up) reset the iPod again to get it out of Disk Mode. If at this point you still have the white screen, restore the iPod using the restore function in iTunes under the Summary tab (this will erase everything on the iPod and put it at factory settings).

Don't disconnect or eject the iPod until the store is totally done. After you think it's done, wait another five minutes.