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Apple Computing Products:
macOS - Notebook Hardware
mbp - flashing sleep light on start up
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<blockquote data-quote="HKphotographer" data-source="post: 456262" data-attributes="member: 25654"><p>I plugged in an external HD I first used on a Windows machine then the whole computer freezes except for the mouse cursor. I tried turning the computer off by pressing the power button but nothing happens.</p><p></p><p>So I unplugged the power supply and removed the battery. I then put the battery back in and plugged in the power cord. I tried turning on my computer but all that appears on the screen is a white page. And the sleep light keeps flashing by 3 blinks at a time.</p><p></p><p>I tried booting the computer holding down the option key. and I tried booting with the OSX disc. But these methods failed.</p><p></p><p>Any ideas on how to solve the problem?</p></blockquote><p></p>
[QUOTE="HKphotographer, post: 456262, member: 25654"] I plugged in an external HD I first used on a Windows machine then the whole computer freezes except for the mouse cursor. I tried turning the computer off by pressing the power button but nothing happens. So I unplugged the power supply and removed the battery. I then put the battery back in and plugged in the power cord. I tried turning on my computer but all that appears on the screen is a white page. And the sleep light keeps flashing by 3 blinks at a time. I tried booting the computer holding down the option key. and I tried booting with the OSX disc. But these methods failed. Any ideas on how to solve the problem? [/QUOTE]
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Apple Computing Products:
macOS - Notebook Hardware
mbp - flashing sleep light on start up
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