Chosen Solution
I followed the guide Retina MacBook 2015 Battery Replacement after completion, I could not get the system to boot. I get zero response when I press the power button. I’ve gone over the guide several times. All the connections look good. I followed the instructions to the T. I’ve replaced batteries on similar MacBooks before with success. Could I have missed something? Or do I need to replace the logic board?
Hey fiddle, I advise you check your connections, connectors, and check the voltages across the board. If irrational voltage numbers show up then do try and check where the components are that control those voltages. If they are normal then check the location of these connectors to ensure correct alignment. If none of this works then sounds like the logic board is toast
