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Post: Answer to "Will not boot, no startup sound, dead but...
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Question

Will not boot, no startup sound, dead but charges battery

This is a 17" MBP A1212 2.44Mhz. There is no startup sound. Nothing happens when I press the power button. The MBP charges the battery. No chime, no light, no fan, complete silence. I tried the reset PMU, changed RAM to make sure and about every trick Mayer suggests on other similar topic. Have no idea where to start! Can it be the DC-in board even if the battery charges?


Answer

Resetting PRAM and NVRAM

Shut down the computer.

Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.

Turn on the computer.

Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.

Hold the keys down until the computer restarts and you hear the startup sound for the second time.

Release the keys.

If nothing happens, reseat the keyboard to logic board cable.

UPDATE

MacBook Pro 17" Models A1151 A1212 A1229 and A1261 Upper Case Replacement