How to Disassemble a Dell Latitude 13n

I want to upgrade the wireless card on my Dell Latitude 13n. It has a "shell" design and there are two black screws on each end of the back of the notebook (where the connections are located) and there are 6 silver screws on the bottom of the laptop. I removed all of these screws but I can't seem to get to the guts of the notebook. I was able to slightly separate the bottom shell from the black plastic part of the notebook (the part with the n series and intel Celeron logos), but it did not seem to want to completely separate and I did not want to force it. Any tips? Thanks

 

I'm a little embarrassed. I found this Dell website.

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