Chosen Solution
So I was reflowing heat to my gpu and have done this plenty of times. When I reassembled my laptop again, I fixed the gpu, but now my keyboard doesn’t always work and the track pad never works. When I press keys, I typically need to press them a few times before it actually registers. I literally just installed a new keyboard that I bought from this site a month ago. It was working just fine until I reassembled my computer. I don’t think I caused any damage during the reassembly and have opened it and cleaned it five times (made sure no thermal paste was around edges of chips with isopropyl alcohol and used compressed air) and made sure the keyboard cable is secure over and over again each time. I’ve reset SMC and PRAM to no avail. I’m not sure what the next step it from here. EDIT: so I went into keyboard under accessibility and found this weird message blinking. I’ve noticed that while the message is on, I’m able to type and my keyboard works. When it’s off, the keyboard is unresponsive. It says “use F1, F2 etc. Keys as standard function keys” in case the video below doesn’t work. Why is it blinking?
These are my setting in keyboard/accessibility
I think you over cooked your board ;-{ I would search out for a 2012 logic board. Its a direct drop in! The only issue you’ll have is the LVDS cable connector needs a light modification. You’ll need to take a nail file and carefully grid down the edge ever so slightly as the width of the tang is larger on the older cable. It only takes a few even strokes to fix. The system I’m banging away on right now is a early 2011 which the GPU died and upgraded the logic board to a 2012! Its been running strong since then.