Nexus 7 2nd Generation LCD Screen Assembly
Is there a reason you suggested removing the screws at this point? I found it to be more of a hassle having the board moving around as I did the next several disconnects. Unless there's a good reason, I would suggest leaving the screws in until the foam and the connectors have been detached.
This was my first time with this kind of ZIF socket and found these instructions/pictures ambiguous. In hindsight I see what was being described (actually used the replacement daughterboard as my guide). May I suggest this phrasing:
The ZIF clamp hinges on the side opposite of where the cable in inserted. Using the flat end of a spudger or your fingernail, flip the thin portion of the connector up and away from the insertion side of the connector.