Error -1 while updating iPod 2nd Gen to iOS 2.2 to 4.2

Hi All,
I had 2nd gen ipod touch and it had some touch screen problem. I went to apple and paid 99$ for replacement as my ipod touch was out of warranty.
Came home plugged in the touch, itunes asked me to update to iOS 4.2. Currently I am having iOS 2.2 on the touch.
When I tried to update, itunes downloaded the file, extracted it and threw me an error "ipod could not be restored. An unknown error occurred (-1)"
I have tried all the steps found on apple sites but nothing seems to be working for me
I tried steps like, updating itunes to latest version, Mac OS updates, restarting...
uninstalling the s/w which are used to jailbreak some of my prev ios devices etc.,
please help me
Regards
-Hari

Error 1 or -1
This may indicate a hardware issue with your device. Follow Troubleshooting security software issues, and restore your device on a different known-good computer. If the errors persist on another computer, the device may need service.
The "device may need service" means a hardware problem. That seems to be your case. ake an appointment at the Genius Bar of an Apple store.
Apple Retail Store - Genius Bar

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Error -1 while updating iPod 2nd Gen to iOS 2.2 to 4.2

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