I had the latte version of this Airport Extreme (with the connector cables assembled underneath the top four-screw cover), and I was able to loosen them with the T8 Torx head - I used it throuout the way
I thought all the AirPorts I have seen in the videos (and here) were opened prior to filming so I assumed I must unplug all three of them, and broke the three-wire connector of the indicator light : ) trying not to worry about it, but I would not really need to unplug that one throughout the process (at all) because the fan is running over the other (four-wire) small connector in the first place
Hey Mark - I broke mine too : ) the small(est) connector that should have remained as an integral part of the broad actually broke/come off with the cable despite the fact that I was literally trying hard to be very careful, and pulling that particular three-wire small clip (outwards) from the connector (placing the flat end of the spudger underneath the clip, and gently levering it away from the center of the device) as instructed) unfortunately was not enough. I am writing to let everyone here know that this is not of a big deal as it was the least important connector among the three:
Now that my Airport extreme runs indicator-free; but the good thing is I can learn everything over the app on iPhone and/or MacBook - tying not to worry about it.
Hope this helps in a particular way as intended: the reader feels a bit better, and knows that he/she is not alone : )
Lesson to learn: read the comments as well - if I had read this, perhaps (just perhaps) I could have been more (?) careful with the 3-wire one