Chosen Solution
Hello Guys, Just received a MBP from a friend to look over. REASON: It was slow. I start it up and saw that it was slow. After that I just TURN OFF remove and put back the battery. HOWEVER I think I MAY touched those 9 METAL “things” right above the battery connector with MY METAL SPUDGER and I think that I SAW a small spark from that. After it just assembled it and PRESSED power. NOW It is 100% DEAD. I tried to plug the MAGSAFE (and it dont even SHOW any light, green or orange), it was working fine before. What is wrong? Did I DAMAGED the logic board or some component by doing that? ACTUALLY I dont believe that just by removing and putting back the battery and MAYBE touching a bit by mistake those 9 conectors would do that. Is there a solution?
Sounds like you have sent the 12V from the battery directly to the SMC, killing the chip. One of the silver pins above the battery is responsible for the battery power to the MacBook, and a few are data lines to the SMC (right next to the battery power pin), to give the Mac information about the battery. Touching the pins together has sent 12V to a chip which can’t handle a voltage of no more than 5V. The only solution would be to replace this chip, which you will need to desolder from a different board of the same model and year (it is a programmed chip), reball it, then solder it to your one. This would explain why there is no charger light, the SMC is responsible for lighting the charger. If it is a 2011+, try plugging the charger in with the battery disconnected, the i5/i7 models are supposed to boot like this. Probably won’t help though, this is a common issue I see with first time DIY repairs, it is a goner…
