As expected too, changes when compared to the previous iMac models are minimal and subtle, and one still needs sucking pad to release the glossy plate covering the LCD panel.
If you plane to reproduce this procedure or to disassemble your iMac, you will have a hard time to avoid any dust to be trapped between the glass plate and the LCD panel. The best environment for such operation is a kitchen with all opening closed, any air flow switched-off and a cooking pot full of boiling water. Humidity will prevent dust to fly in the air. Wait a bit before opening the iMac that the air is saturated, and then proceed. If you notice some water condensation inside the glass plate after reassembling, do not worry it will disappear quickly after using your iMac.
Direct link to the article: Hhttp://www.ifixit.com
