A1466 emc 3178 no power symptoms
Reviving an old macbook air. no idea of previous status. symptoms- connect mag safe and indicator shows green then switches to solid amber, left an hour to charge, no response from power button. reset prom, cleaned everything and different power source same symptoms. question before I open it up, should it power up connected to mag safe even if battery is dead. looking for additional troubleshooting tips before cracking it open. any advice is greatly appreciated, thanks in advance. A1466 emc 3178
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