Chosen Solution

Hello there!People I need your help, Few months ago, my macbook pro suddenly blacked screen while I was working. After plugging in the charger, I couldn’t boot it up again… I contacted the apple support which tried to make me perform a bunch of actions like reset SMC and blablabla. Nothing could work. Then, I brought it to an apple reseller for a diagnostic and they told that the motherboard must be dead. So I bought a new motherboard, something compatible with my macbook of course. I just received it and after swapping the motherboard, I heard the chimes that I was missing so much and finally could log into macOS. Hurray!!! Wait… no so fast: I just left the mac like that for about an hour and once I came back, impossible to wake it up. Really?? Seriously, I’m out of ideas now. What could possibly cause that issue? Here are some info worth to know: the original motherboard is a 2.6ghz 16GB (from 2014)the new motherboard is a 2.4ghz 16GB from a macbook of 2013my keyboard and touchpad work, I managed to log in macOS after the motherboard swapIf I plug the charger, the led is amberIf I perform an SMC, the led goes to green for a few secondsIf I unplug the battery, the mac won’t power on either Thank you very much for any help EDIT: battery report added

M.

Lets do this, disconnect the battery, now with the battery disconnected press and hold the power button to fully discharge the logic board (a good 15 secs). Now carefully place your system on its side so the MagSafe port is up and plug in the charger your system should spontaneously start up! Let it finish booting and shut it down properly. Reconnect the battery and MagSafe charger as soon as it starts up again download and run this this gem of an app! CoconutBattery take a snapshot of the apps main window and post it here for us to see Adding images to an existing question so we can see whats happening.