iPod 1g not restoring. Shows error 1603.

My old IPod Touch hadn't been used for a long time. I guess it went to recovery mode. When i charge it, it displays the apple logo at first and then it eventuaally fades to black. i charged it for a long time and nothing happened. It never turns on. I connected it to my laptop. Now, after the logo it shows the USB cable pointing towards a CD with a beam note music thingy in front of it and ITunes pops up with a message saying that itunes is in recovery mode and needs to be restored and updated. I do as it says and after extracting files stage, it enters the preparing itunes for restore stage. When it reaches the end, the Ipod disconnets, the screen flashes white and then the ipod reconnects with the apple logo on screen which fades to black eventually. ITunes get stuck for 5 min on the end of preparing IPhone for restore stage. The serial number shows : n/a. and error 1603 pops up. I tried many times. The same exact thing keeps happenig. I tried with different user accounts, updated ITunes, Different USB chords, Checked the port (it looks beautiful) , and it keeps happening. Help Me!!!

PS: i also tried to put it in DFU mode, but it says ur device couldnt enter DFU pleasse try again later. (i have pics n videos of everything if u need it)