Watch the video first, read the entire tutorial and all the comments before you start, and spread a white towel on the floor so you can find screws when you drop them. Watch this first -- http://www.youtube.com/watch?v=qiBxhA29e...
When they say "retaining flap", they are referring to a square plastic clip that hinges to the clip on the board. Starts at 7:15 in the video.
When they say "pull" the cable, they mean to "slide" it. Do not lift and pull.
"Pull the cable straight" means to slide the connector out, do not lift and pull. Also, check for a square locking clip attached to the plug, if it won't come out.
Count the number of connectors as you remove the board, so that when you put it back one does not get lost under the board and you can't figure out why it won't go in. You should do this.
Use flat edge of spudger on the ack edge of the plug to slide the connector out.
"Pull parallel" means to slide the connector out, do not lift and pull.
Remove T6 (smaller) screws first, that was the last screwdriver that you used (for smooth workflow).
Connector slides out, do not lift and pull.
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