Chosen Solution
Hello, recently my Macbook Air stopped working. I worked on it as usual when it unexpectedly shut down and I was unable to power it on again. It didn’t react to power button and LED indicator on power adapter didn’t turned on (I even tried another power adapter as I have second Macbook at home). I brought the laptop to Apple Premium Service Provider and after 2 days they returned it saying that Apple Service Toolkit didn’t show any errors and after it somehow turned on they did only reset SMC. Everything was fine for about 2 weeks and then it once again shut down. I went to ASP once again and they say that since they can’t diagnose my problem, the only solution they see is to replace whole motherboard (which of course cost more than the laptop is worth now). Is it really problem with whole motherboard? Maybe it’s only the problem with I/O board? Is there a way I can check what is really damaged? I have tools and have replaced battery once on different Macbook so I should be able to check some simple stuff on the inside. Thanks in adavance! Adam
The only clue I see here is the MagSafe chargers LED was not lit “LED indicator on power adapter didn’t turned on (I even tried another power adapter as I have second Macbook at home).” That would imply either the charger or the MagSafe interface has a problem. Review this Apple T/N Apple Portables: Troubleshooting MagSafe adapters. Make sure the cable and the connector are in good shape if not replace the adapter. Now the bad news on the MagSafe chargers you might have! There are a lot of fake chargers out there. Make sure you have a real one! OEM MagSafe Chargers vs Cheap Imposters: Teardown for Truth and here you can see Real vs Fake Magsafe 2 Charger Macbook Pro OK, Lets say we know the charger is good and the outlet we are using is good then we need to focus on the MagSafe connector on the MacBook Air it might be bad. This is where the I/O board may need replacing MacBook Air 13" (Mid 2013-2017) I/O Board and here’s the guide to put it in MacBook Air 13" Early 2015 I/O Board Replacement Given the systems age your battery may need replacing soon. To check that you’ll want to run this gem of an app CoconutBattery. Take a snapshot of the main window and pos it here for us to see Adding images to an existing question
Yes, sure, you can test your board and find out what is wrong. Google for your board that is probably an 820-00165, download a boardview software like Openboardview, schematics and relevant board view file. Then test all power lines at page 62 and when you find the one the doesn’t match specs you’re done.
