Chosen Solution
Hey guys. The cushion thing that covers the cable connection for the wifi/isight/Bluetooth slid out of place, causing a short in a part in my logic board. I’d like to replace this piece but I cannot identify it. Brief history of laptop: New battery New optic drive Upgraded ram to 8gb Ssd harddrive. Suffered water damage. Replaced logic board. Everything worked great for a few days until I noticed wifi saying “no wifi hardware installed”. Then I observed this on the logic board. Images can be seen here: forums.macrumors.com/showthread.php?t=1326509 Looks as though a few other people have had this issue and no one has any results in resolving it. A 25 cent cap sounds a lot better than a 200 dollar repair. Edit:
Here is an image of my repair. The inductor is impossibly small, so i soldered it to two thin copper wires that I then attached to the respective spots on the logic board. I then laid down electric tape so as to not let it short circuit anything else, and followed up with a small dab of hot glue to not allow the wires to shift anywhere. Afterwards I turned on the computer and viola! Wifi works and so does isight! Thanks again for your help!
Nick, if you are having issues with the identical component as in your linked to image, then you are missing reference designator L3404. It is a FERR-120-OHM-1.5A inductor in a 0402 package. A Murata BLM15EG121SN1 would be a perfect match. You can get it right here as well as many other places. this inductor is part of your WLAN circuit and could be responsible for your issues. It requires special skills and tools to solder a SMC like this inductor back on the logic board. If you have never done it, I suggest to practice on an old board first. Hope this helps, good luck.
