Problem with ipod classic

Not sure what you meant by "restarted" but sometimes it takes "resetting" the ipod by plugging the cable into a reliable power source and then holding down both the menu and select (center circle) buttons for more than 5 seconds.

My ipod has a red cross in a circle

from this site http://support.apple.com/manuals/ you can enter the serial number and link straight to the manual OR
choose model from the images at the top of page
this is a direct link to the ipod classic 160GB user guide http://manuals.info.apple.com/en_US/iPod_classic_160GB_User_Guide.pdf

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• If not, then please comment back so I can help some more

This has happened to several people, unfortunately. BUT, there is a way to fix it! Click on the apple support link below.

http://support.apple.com/kb/TS1463

First try resetting the iPod. If this does not work then restore it.
To RESET IPOD: 1 Toggle the Hold switch on and off (slide it to HOLD and then back again). 2 Press and hold the Menu and Center buttons for at least 6 seconds, until the Apple logo appears.
To RESTORE IPOD To update or restore iPod classic: 1 Make sure you have an Internet connection and have installed the latest version of iTunes from http://www.apple.com/itunes/download/?ipod 2 Connect iPod classic to your computer. 3 In iTunes, select iPod classic in the source list and click the Summary tab. The Version section tells you whether iPod classic is up to date or needs a newer version of the software.
In Restore all data is erased from iPod classic, including songs, videos, files, contacts, photos, calendar information, and any other data. All iPod classic settings are restored to their original state.

This indicates that the hard drive inside the iPod classic has gone bad.

Check Apple's Warranty web page to see if your iPod is still under warranty: https://selfsolve.apple.com/GetWarranty.do

Simply type in the Serial Number located on the back of the iPod, and your location. Who knows, if you are lucky, you may be able to send it in to get it fixed/replaced for free.

my ipod is not charging and not coming on what i can do to fix it

I had the same problem. Try this: Toggle first Hold Button, push to Hold then leave it Unhold. Then long press Menu Button and the Center Button together for 10 seconds. Voila! There solves your problem.

http://fixyouripod.weebly.com/

allright i have the same problem and i know how to get it to discharge, reset it then right when you see the apple logo hold previous and center.
then it will take you to the whole systems analysis ******** that they do when you send it in, just go auto test and DONT continue, it wont auto shut off cause of the mode its in. thats what im doing right now.