If resetting it doesn't work, you should reinstall the software:

http://support.microsoft.com/kb/926993

Software available at: http://www.zune.net/en-us/products/softw...

You may lose music or other data purchased/added since your last sync.

I fix these for a living, the number Five Error is usually the hard drive, sometimes the hard drive cable.

i have a contact support 5 and there is a chip getting really hot on the motherboard.(looking from the back its on the lower right side, behind the back button on the back side of the board) still say 5 is the hdd or hdd cable?

hi my name is Eddy and i got a zune 120 gb after replacing the battery because the old one was there since i brought it the screen show a mesage "ERROR 5 CONTACT SUPPORT"

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Thanks

After replacing my zune LCD screen I got this message. I took the zune apart again and found that I did not properly replace the mother board ribbon. After properly replacing the ribbon, the zune worked fine. Hope this works.