Chosen Solution
MacBook Pro 15" Retina Display Late 2013 will not turn on. MagSafe Power Light turns green for 1 second then turns orange and stays orange. Have replaced the battery and charged for 24 hours. During this time, the MacBook was warm initially then eventually cooled off. Nothing happens when pressing the power button, whether plugged-in or not. Pressing shift+control+option+power button turns the MagSafe Power Light to green for 1 second then back to orange. The power adapter and MagSafe connector have been tested on other MacBooks successfully.
I’m suspecting you have a knockoff MagSafe charger which has damaged your logic board. The market place has become flooded with these cheap knockoffs as Apple stopped fighting their importing into the EU & US. You’ll need to replace the charger with a REAL Apple unit Apple 85W MagSafe Power Adapter (for 15- and 17-inch MacBook Pro) ● 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 Sadly, you’ll need to find someone with the skills to fix your logic board or you’ll need to replace it MacBook Pro 15" Retina Display Late 2013 Logic Board Replacement
