MacBook Air EFI n00bish questions, could use some help

Hello,
I have been trying to find a way to unlock my MacBook Air, and after reading the guide I'm a afraid I have some n00bish questions. I understand the idea behind how this all works but I have not seen any information on how to identify the chip we are working with. I have access to service manuals but they do not go down to board level and I'm not exactly sure what i am looking for, what identifying features or what physical location of the board should I be looking for?
I plan to flash via Raspberry Pi, where might I find a data sheet so I may make appropriate connections?
Is there a repository somewhere of donated rips I can search through to find an appropriate file to flash?

Thanks for any assistance!

Same here. I finally got my SOIC clip and raspberry pi and thought I was ready to go. I have a Macbook Air A1465 EMC 2631 and thought the layout would be similar to the MBP in your guide. Unfortunately, It is very different and I can't identify the correct flash chip. Could someone add a picture with the correct chip?

thank you for the reply,
I would love to see a clip for the chip but since one is not readily available I planned to solder directly to the chip; however, the same requisitions remain. First things first, how do i visually identify the correct chip we are working with?

Would the situation be the same for the MBP A1502? I am having troubles locating it as well.

i popped off the back and i think i found the connector you were referring to. i dont doubt you are right about the airs not being able to use the clip, but honestly it looks like it fits. i placed a clip on it and from what I can tell it should work with the clip, but i can always just solder on. On the other hand, maybe I am looking at the wrong chip. I can post pictures of what I am looking at to photobucket or where ever you prefer if you would like to see what I am seeing and confirm that I have identified the correct chip
I probably should have mentioned mine is a MacBook Air (11-inch, Late 2010)

Ok, so heres the bottom of my MacBook Air main logic board/motherboard/whatever you want to call it.
I think I have identified the connector you referred to and what I am assuming is the chip from other pictures I have seen but the fact that the clip seems to fit properly makes me think I am looking at the wrong one.
For reference this is the bottom of the MLB on the left hand side near the LVDS (low voltage display signal) cable, or in other words the video cable from the motherboard to the display.
Sorry about the multiple names for parts, at work we use somewhat different terminology among ourselves than what we do with our customers and I dont know what terms you guys use and dont want to leave anybody out.

Yeah I tend to leave a tab open in my browser for this thread as it has been keeping me excited lately. I have been trying to unlock this air for over a year on and off again but refuse to pay for some ebay device.
From what you have said it sounds like I just need to pull the data off the chip and see whats there, will be sure to post once i do. I admit this is where things start to get way outside of my working knowledge and I will need help finding which pin goes to which pin from raspberry pi to the chip. I assume the commands for doing the actual rip should be fairly straight forward.
Now that I think about it, with some magnification I may be able to see what the chip has written on the top of it to help confirm it is the correct one, its just a bit too small and a bit too faded for me to easily read.
If this all works out and I manage to unlock this Air I can post a step by step guide for this specific model if it would help anybody out there.

after reviewing your guide to locating the correct chip there are now a few chips that may be the one I am looking for. I suppose I wont likely damage a chip if i try the wrong one. at any rate, how can i find the correct relationship of what chip pin to what raspberry pi pin to start trying to pull data?

actually I am starting to think I was right the 1st time

I had a chance to pull the logic board and took pictures of both sides. it doesn't look quite like any of the ones you had posted so it may be in a different location, im really not sure at this point. I can provide closer images of any section that may be of interest, just let me know.

wow those were worse than i thought, i think this is the best i can do. I had trouble uploading (file size limit maybe?) so heres a spider oak link spideroak.com/browse/share/arduino_project_sketch/MacBookAirLogicBoard

starting to sound like that may be my only option if you get that working, though I remember you saying the connector on this one was not proprietary so im not sure if it will require different connector types or how to deal with the different types