Chosen Solution
So I haven’t turned on my MacBook Air in a while and I was expecting to encounter SOME issues, so when it wouldn’t turn on at first, I wasn’t surprised. It stayed that way when I plugged it in and I didn’t get any orange light to indicate on the MagSafe charger. I opened it up and took a look. Disconnected and reconnected everything and closed it back up. Tried resetting the SMC - nothing. Then I plug it in and decide to just let it go for a while. “Maybe I’ll get lucky I think as I walk away.” And then I heard the chime. I turn around and sure enough it’s turning on. But it says 1% then 0% once I’ve logged in. The battery isn’t charging, but the MagSafe is keeping the system on. That’s weird. So I check the battery and get this from CoconutBattery: Current Charge - 0 mAhFull Charge Capacity - 3101 mAhDesign Capacity - 4680 mAhCycle Count - 79 (!!!)macOS Battery Status - PoorBattery Temp - 21.8°Charging with - 0 WattsPower adapter - Connected So it looks like it’s registering the MagSafe power adapter, but the adapter won’t charge the battery… But also the battery doesn’t seem “dead” because it shows that there’s a 3101 mAh capacity right now that it’s just not recharging. Is it possible I disconnected something while I was in there and I just need to open it back up? Based on everything I’m seeing it should be working, no?
Yes it should be working… anything from Apple is advanced and I would suggest going and getting the battery tested just in case… The charging port in the PC might be loose or corroded… I would then get it checked out by Apple experts to see if they can find anything… at that point you would be out of luck and have to buy something new… Hope this is at least a little help…
Sadly, your systems logic board charging logic is damaged. You’ll need to find someone who can fix it or you could just replace the logic board MacBook Air 11" (Mid 2011) 1.6 GHz Logic Board and the guide MacBook Air 11" Mid 2011 Logic Board Replacement Consider the cost and the limitations of this older system.
