Chosen Solution

Hi there. I have a problem. I cleaned my MBP, fans and heatsink, and when I cleaned, I got off the logic board. The little battery I disconnected to. After this, I reassebled all, and power on my MBP. Everything was ok. But now if I connect the magsafe, and my MBP is powered off, will auto power. The question is why he do that? And my led of the open/close lid, do nothing. I tried with baterry off, and then won`t auto power. My battery, works ok, has 93 cycles, and the condition is normal, and is charging. So, what seems to be the problem? Thanks!

When you say that opening and closing you MacBook Pro “does nothing,” what do you mean? It won’t sleep if you close it? First of all, you should do a PRAM reset. If that doesn’t solve it, you should do an SMU reset. If that doesn’t solve it, then you gotta do some investigating. I would just go in and double-check your assembly job. When stuff like this happens to me, I just go back through it and try to restore it to the way it was before I went inside. It could be any number of things that’s causing your MacBook Pro to behave irrationally. Just start off by isolating the parts. You found that the battery isn’t the case, so now detach another part and plug in the MagSafe. When your MacBook Pro stops powering on after the MagSafe is plugged in, you’ll know that it was that last component that you disconnected. I myself am very curious as to why this is happening, so please try these few things and update us on what’s going on. I wouldn’t be surprised if some EMI framework (or something like it) is shorting the MacBook Pro out somewhere. Some shorting is going on. There’s little doubt about that. Good luck!

Hey guys, I’m having the same issue and I came across this - https://apple.stackexchange.com/question… - Unfortunately I can’t test it because I wiped out OS X and put Linux on it without having a way to restore OS X. But you guys (if you’re still checking this) can give it a shot and let me know if it works! Update (11/06/2018) Got a spare USB drive with an OS X installer on it today! Installed OS X, ran the terminal command, and problem solved! Confirmed working!