Chosen Solution
MagSafe charger LED blinks green and won’t charge. We ordered a new (knockoff) charging cable. Tried it cable in different outlets. We installed a new battery. Nothing helped. I tried the D diagnostics on startup but it seemed to hang up after at about 80% done. It says Pass Number 1, total time testing 49 seconds and it just stays like that. I left it like that for 20 minutes. And since we put the new battery in (today) the battery indicator shows an X in it at first, then shows 81% in red. Here are screenshots from coconutbattery info.
The first image is telling me the batteries data is not getting to SMC, then the second appears to be working. Is this the same battery? It also looks like the MagSafe is not connected when you took the snapshot was that correct? If not then we still have a problem with the chargers connection or the charger its self is bad. One of the problems we are now seeing lots of is knockoff chargers flooding the market! These cheap chargers often damage the system. Please only use a REAL Apple unit Apple 45W MagSafe Power Adapter for MacBook Air ● Don’t Replace Your MacBook Charger With a Cheap Knockoff ● OEM MagSafe Chargers vs Cheap Imposters: Teardown for Truth ● Lacking safety features, cheap MacBook chargers create big sparks ● FAKE Magsafe MacBook Chargers on eBay - Watch before buying a Mac Charger One of the knockoff chargers calling cards!
Apple Portables: Troubleshooting MagSafe adapters Some of the damage is within the systems logic board.
