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Released June 2009 / 2.66, 2.8, or 3.06 GHz Core 2 Duo Processor

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Want turn on has no sound or lights

Want power on has charged

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You likely need a new battery given the age of the system 2019年中期 MacBook Pro 15" 一体化机电池更换

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I've already replaced new battery

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@family45 - I would need more background on what happened to the system. Did you get it wet, have spill into the keyboard or trackpad at some point? Did you bank the system?

Was it working and you replaced the battery (or other task) and it wasn't working afterwards?

Like a doctor, you need to explain your ailment, just saying it hurts doesn't help focus in on the issue.

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