I found the best way for me to reinstall the ZIF cable in was to lay LCD panel on its face and gently peel the black tape on upper part of lcd to expose and remove the connector there. At this point the ribbon cable is free and you can insert the hard to align connector to the board. Set LCD into imac and connect the small push connector next to the ribbon cable on board. It was easier to see and then reconnect the cable to the upper portion of LCD and tape it back over. Reinstall other connectors etc. This way worked best on my 27" iMac as it was much easier.