Someone had been seating on my iPod and broke the screen.
The instructions were almost perfect and quite clear. I met some small issues, while opening the case and disconnecting cables. Based on my experience, I have updated the guides.
It is in the guide now. Most important finding - it is easier to know how to open the case if one knows where the holding clips are. It would be useful to include the reference pictures of open gadgets or better explain where those clips are. Would save a lot of frustration and prevent scratches.