Chosen Solution
After liquid spill, there were some water inside when opened up the laptop. The battery was dead and no where else showed liquid damage (red sticker). Cleaned with isopropyl alcohol to be sure. At first it was fine turning on but found the battery dead so ordered new battery. After changed to new battery it was hard to turn on but when finally got it turned on, trackpad/keyboard wouldn’t work. Found burned marks on the flex cable from logic board to trackpad, replaced it. Also replaced keyboard. -The laptop now only turn on if I remove the flex and short the laptop. -When the flex is connected, it would not turn on no matter how hard I tried(no fan no sound no nothing). When SMC reset while flex is connected, the light turn from orange to green for a sec or two then back to orange for charging. -Battery won’t charge at all with the flex cable connected, it did charge if flex cable is not connected. I had new keyboard and flex yet nothing works quite right, should I even try to replace trackpad?
GMaster, I’m a professional Mac repair guy and this is over my head. If you came in as a customer I would tell you it’s a money pit. The only guy I know that might have a shot at it is Louis Rossman of the Rossman Group. https://www.rossmanngroup.com He’s a New Yorker so brace yourself if you talk to him. I don’t personally care for him but I do respect his knowledge. It may take him five weeks to get to it, if it’s not repairable you only get charged for the return shipping, expect about $40 for that. It will probably be expensive but far cheaper than a new machine. ‘Course that’s just my opinion, I could be wrong. https://www.youtube.com/watch?v=f4u1zEiX…
Hi, unfortunately, it looks like a logic board damage. Try power on to Apple Hardware Test (D or Option-D) with usb keyboard plugged in and post result Regards, Kris
