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Question Asus N55VX motherboard question

Oct 19, 2019
Hey guys,

Due to a series of Kernel-Power 41 errors recently I decided to open up my N55VX today and clean out some dust. In the process I stupidly used a vacuum cleaner to get rid of the worst surface dust (it was a lot and I thought I was being really careful). However I accidentally managed to break the connector of one of the cables. Thus I was forced to put the laptop back together without being able to reconnect the cable. It's the one being disconnected at 05:43 in this video: https://www.youtube.com/watch?v=4Kk4b2XXGLk.

Can anyone tell me what this thing does? I assumed I would need to get a replacement for my screen to even work but to my surprise the laptop actually appears to run exactly like normal now. So it appears to serve some non-essential function, but I haven't figured out what yet.

Any help would be greatly appreciated!

EDIT: I forgot to mention: it says "J3105" next to it on the motherboard.
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