I have followed this very good tutorial as carefully as I could and I thank you very much for having posted it!
However, my problem is not solved. After having connect-disconnect issues when used with car charger, the iPod started making faint noise when plugged and refused to charge or start-up. I thought it was a mechanical noise (hard drive?) but obviously it is not the case because battery and hard drive are now unplugged, and the board-screen assembly still makes the same noise when plugged in a USB socket (but of course I can't localize the origin of that noise).
Do you have any idea what it might be due to?
Thank you in advance for any advice,