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mackbook pro 2010

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    Macbook Pro 2010 15" High Sierra turns off and on on startup

    Hello. I have a Macbook Pro 2010 running High Sierra. I changed the HD for a SSD and upgraded RAM a few months ago and it was working fine. Today I turned it on and it chimes shows the apple logo and loading bar then it turns off, then it turns on and does the same. I've tried: - Apple...
    • titamerello
    • Thread
    • high sierra mackbook pro mackbook pro 2010 startup problem
    • Replies: 9
    • Forum: MacBook Pro
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