Chosen Solution
HI My friend spilled some water on her laptop, not a lot was able to tilt it and shut it down, but it damaged the keyboard so many keys would not work along with the power button. I replaced the keyboard, but the power button does not work, they only way to boot is remove battery power supply and plug it back in or just leave it running. Restart works fine, option R etc. I ran AHT through bootable USB and received this error. Sorry, I did have the wrong codes, I took a picture but wrote the wrong thing down. the picture is listed below.. 4SNS/1/1/40000000:VPOR-12.614 Any ideas what this could be?
The Macbook Pro is MacBook Pro “Core i5” 2.3 13" Early 2011 2.3 GHz Core i5 (I5-2415M) Intro. February 24, 2011 Disc. October 24, 2011 Order MC700LL/A Model A1278 (EMC 2419*) Family Early 2011 13" ID MacBookPro8,1 RAM 8 GB VRAM 384 MB Storage 1 TB (5400 RPM) Optical 8X DL “SuperDrive” Complete MacBook Pro “Core i5” 2.3 13" Early 2011 Specs Update (01/14/2017) Question. If it is the logic board, will it cause any other issues other than not being able to use the power button? I mean will this problem cause other parts of the board or computer to fail?
VP0R is the PBUS voltage sense enable and filter from what I understand, which doesn’t make sense if it is booting fine after reconnecting the battery (and plugging in the charger presumably?). Are the fans spinning at a normal speed? Measure voltage on 5th pin from the left of the keyboard connector, whilst pressing the power button. If it drops to under 1V temporarily, the power button is fine. If this pin is burnt or corroded, this is likely the issue and the connector will need replacing. If not, you have a more complicated issue with the logic board, and I would recommend sending it somewhere. Clean the logic board using 95%+ isopropyl, if you haven’t already.
Double check your error message here. I think you have a typo or two as I don’t know of any NSNS or YPOR codes. For reference here a good writeup on how to decode the codes: How to decipher error codes in Apple Hardware Test or Apple Diagnostics and heres an Apple TN on them: Apple Diagnostics: Reference codes. From the sounds of it your logic board got wet so there is likely some damage there. Take some good detail pictures of both sides of the logic board and past them here so we can see the discreet SMD devices (needs to be sharply focused) You’ll likely need to take a few per side so we can see.
