Chosen Solution
last 4 of serial # DV7L When trying to power up with power button :
- Mac starts
- Both fans spin for 2 sec
- Sleep LED blinks once
- all shuts off, cycle repeats without pushing power button on Battery indicator full. When I unplug battery with adapter attached, Mac wont react at all. Tried different RAMs, HDDs, SSDs. Reseting SMC, NVRAM, 20sec battery unplug - no luck. Any of you guys had smth similar with POST ?
Disconnect the mag-safe, disconnect the battery. Press and hold the power button for 10 seconds. Reconnect battery, reconnect mag-safe and tell us if it booted.