Chosen Solution
Hello, and thank you for helping. I have a mid 2010 13” MacBook Pro that worked flawlessly (and still does, sort of). One day, when the battery was at 0% I plugged it in and turned it on. The chime ringed but it shut off immediately. I tried turning it on again, but it did the same thing. I found a way to turn it on that consists on pressing the power button for 5 seconds, and when it shuts off press it again for ~10 seconds. Later I discovered that this is an SMC protection mechanism. When it turns on, it takes a long time to do so. And when it finally boots it runs really slowly, which is a sign that a sensor is wrong. But, when I was trying to diagnose it, i found out that booting it without the battery the machine works normally. I ran ASD on the machine to see what was failing, and indeed it’s sensor issues. DC In (ID0R) (Current Sensor DC IN 0 Rail) is reading 8.243A, when it should be between 0 to 5 A Battery - BMON Eng. (IP0R) (Current Sensor PBUS 0 Rail)is reading 9.166A, when it should be between 0 to 8.4A CPU 0 Core (VC0C) (Voltage sensor CPU 0 Core) is reading 3.299 V, when it should be 0 to 1.5V At this point I don’t know how to proceed, I really don’t know component level repairs and don’t know where is the problem itself. I would really appreciate any help. Thank you! (I apologize if there are any mistakes, English is my second language)
This will need someone with a good understanding in reading schematics and micro-soldering as well as access to the needed parts to repair your logic board. The power control logic is damaged on your logic board and it does look like you may have a bad battery here as well (given the systems age that wouldn’t surprise me). Frankly, I think the smarter direction here is to just replace the logic board given the cost it won’t be much different MacBook Pro 13" Unibody Mid 2010 Logic Board Replacement You’ll find the needed part within the guide and here’s the needed battery MacBook Pro 13" Unibody (Mid 2009-Mid 2012) Battery
