I ruined the first iPod. Pushing up on the glass I put too much pressure on the lcd display and ruined it. Was in too much of a hurry and not patient enough. I learned from my mistakes, though, and did much better the second time around. I took my time. Thought the project through, had my tools and workspace ready, and only began when when I could work uninterrupted. Soldering the new battery was by far the hardest part. Watched a good YouTube video and finally made it work. Thanks for posting these manuals so that we can repair things ourselves. I fixed it!
I didn’t have a spudger so I used a metal nail file with a rounded end. Heated the back of the iPod with a hair dryer for about a minute first to soften the adhesive and it all worked fairly smoothly. Be gentle with the lcd display.
I was able to remove it using a pin in the small hole. Once it is out there may be pieces that want to fall off; a round ring and the white retainer piece.
In the second photo where you can see under the click wheel, just above the square black piece with the apple on it is a black rectangle with a hole in the center. There will be a spring in the hole. Remove the spring and the black piece it is in and set aside or they will fall out and get lost.
After destroying one iPod, I learned from my mistakes. Heating it with a hair dryer to loosen the adhesive helped a lot. You need to get the tool between the glass and the lcd display; be very careful not to put pressure on the display!