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Well crap. That further complicates things. It doesn't look like anything is missing in that case. Completely lost at this point.

Pin 2 of U5805 has the full 5V coming in to it perfectly fine, so that means U5805 itself is bad... Right..? Or is there something else outside that should be boosting it that i'm not understanding?

P18V5S4_FB is putting out like .2mV right off U5805

pp3v3_s4 is present and at 3.34v on the keyboard and trackpad connector. pp18v5_s4 however, is not giving enough power. I'm getting VERY little from it, less than 1 volt. I'm still in the process of tracing it back to see where it's getting dragged down, but as I am new to this and quite stupid...

Strange... Now when I turn it on, regardless of the keyboard or mouse being plugged in it takes a long time to start up, loads for a bit, then goes to a window showing me how to turn on a bluetooth keyboard and mouse... Does it when they're both plugged in, neither plugged in, or just one of them.

Okay, figured the problem out. Everything I was doing was right, but I just overlooked one tiny stupid thing. I didn't know that a square around something in the board view meant it was a component. I was actually missing R5665. The two pads under it were in such good condition that I thought it...

Odd. Either way, Q5660 seems to be going everywhere it should just fine, but continuity isn't everything I guess :/ I have another board from the same year (though it's a 17 inch), if I were to take Q5660 from that board and put it on this other one, would it function the same?

Crap. Do you know where Q5660 should actually be located?

No Title Might be easier to see in this.

No Title I'm stupid and tried to post a link to the picture in the last post because I didn't see the image upload button. Ignore the link in the last post ;(

There's no place for Q5660 to even go? Well, according to what the board view shows anyway... Does this look correct..? The dots there do look a bit odd, but not like it was ripped out, just like it was never there to begin with.

It doesn't look like there's even a place for it on the board like it was ripped off or anything. Are there different revisions of the same board that have different board view files? That one specific component is the only thing I can't see on this one, but it's like it never existed.

It seems to be going through a nonexistant component. Q5660.

There's only 3 points in that entire signal, all of which seem to be fine. I'm thinking maybe it's somewhere with pin 2 now, and that after it gets over near the SMC on the back side of the board is the problem. Gonna check that whole line of crap tomorrow. Thanks!

Yeah, i've taken the board out. Everything looks fine. He originally was trying to clean the heatsinks and stuff (which he's done by himself fine a few times before), and somehow ripped the connectors off this time. He's been in here before for something else and the CPU fan thing was fine at...

Customer came in with a 15 inch 2011 pro last week that he somehow ripped the fan connectors off of the board on. The GPU fan connector came off in a way that the pads were safe, so that one was a pretty simple process to solder back in place. The CPU fan on the other hand... Two of the pads...

It's only there with the battery in. I tried with a few different batteries and it still does it. Had it running on battery for a few hours now and it's still running at least!

After having the battery in for a bit, i'm noticing a high pitched whine coming from the battery connector area. Everything still seems to be running great, but the noise leads me to believe something isn't finished... Any ideas?

FIXED IT! No 100% CPU usage, turns on right away, runs off battery, ect. The problem was the broken trace. I just kinda swiped over all the pins on that side to get em separated then tried my best to get some solder down to that other pad pin 18 connects to. Plugged it in and it turned right...

I guess I just wasn't using enough alcohol last time. Cleaned it up a bit and now I can get a better reading. It "seems" like pins 17 and 18 are bridged. Not getting continuity from pin 1 of r7051 and pin 18, or even the little dot above it, so that trace may be broken on top of 17 and 18 being...