Help, my iPad version 1 has crashed when trying to install OS 5

Question

Can anyone please help.
I am runing windows XP and recently downloaded iTunes 10.5.
I have an 8 month old iPad version 1, which has been working perfectly up to this point.
I plugged my iPad into the computer and 'sync'd' the content with my PC.
I was then invited to update the operating system to OS5, which I accepted.
This process took about 50 minutes to download, and then it said it was installing the software on my iPad.
I then got 'error message' saying 'Unable to restore Kevin's Ipad - Unknown error'
My iPad was then frozen, and all you got onthe iPad  screen was a picture of the connection lead and an iTunes symbol like you do when you first buy the iPad.
I tried re-connecting the iPad, and usual restarting of desktop PC etc, and it says 'iTunes has detected an iPad in recovery mode. You must restore this iPad before it can be used with iTunes'.
I clicked on the 'restore iPad' button and after several minutes thinknig about it, i get the error message 'The iPad could not be restored. An Unknown error Occurred (1604)'
I am now left with a frozen iPad which is useless and wishing that I had never embarked on the updating of the operating system.
Has anyone got any ideas of how I can restore my iPad, or is it a return to technician for repair?
Would deleting iTunes on my PC and re-installing it do any good??
Any advice at all would be gratefully received. I am tearing my hair out over this as it was perfect before trying to update software.
The thing is still under warranty. Would the warranty cover this kind of problem??
Many thanks

Answer 1

You said that you keep getting the error code 1604. Did you try putting the iPad into recovery mode and when the error code appears - close iTunes and restart iTunes while the iPad is connected to your PC?
Error 1604: This error is often related to USB timing. Try changing USB ports, uninstalling and reinstalling USB ports, and other available USB troubleshooting steps (troubleshooting USB connections, device not recognized properly, computer won't recognize a FireWire or USB device). If you are using a dock, bypass it and connect directly to the white Apple USB dock connector cable. If the issue persists on a known-good computer, the device may need service.
If the issue is not resolved by USB isolation troubleshooting, and another computer is not available, try these steps to resolve the issue:
Connect the device to iTunes, confirm that the device is in Recovery Mode. If it's not in Recovery Mode, put it into Recovery Mode.
Restore and wait for error 1604.
When prompted, click OK.
Close and reopen iTunes while iPhone remains connected.
iPhone should now be recognized in Recovery Mode again.
Try to restore again.
If the steps above do not resolve the issue, try restoring using a known-good USB cable, computer, and network connection.