I bought a new laptop, and when I was about to add an SSD, I saw this. The store tells me it's nothing, and if anything, just flux residue from production.
To me, it looks like overheating. That is; a bad connection or something is causing a lot of heat, and thus these brown and dark spots around, especially the leftmost pin, and a black area on the edge of the PCB.
What do you think? Doesn't it look like it is burnt?
ADDED:
Let me add an extreme close up for details: http://amews.net/ExtremeCloseUp.png
What about the edge - seems like it has been damaged (not a sharp edge anymore) - does that matter?
What about the brown color on the connector itself ? I suppose that the connector would not be plugged in while soldering. How should flux end up there then?
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