2009 iMac EMC 2309 No power, no sounds, replaced power supply with newHi, I have a 27” EMC2309 iMac. There is no signs of life at all, press the power button-nothing, checked for a diagnostic lig...
DEAD, No power, charger good-green light-Suggestions?A1278, this 13” 2010 MBP appears completely dead. Won’t boot or show any signs of power with or without the Apple charger plu...
回答先: DEAD, No power, charger good-green light-Suggestions?I left the battery unplugged from the logic board for 24 hrs and charger disconnected. Pressed the power button for 10 seconds. Plugged the battery back in, pressed the power button, nothing. Then plugged in the charger, green light on the plug, pressed the battery charge indicator and all lights lit up. But still no start up when power button is pressed. Could the power button be broken? How do I test that.