If you try to start up your Mac from a hard disk, network volume, or Time Machine backup that contains an incompatible version or build of macOS, you might experience one or more of these symptoms:
- Your Mac doesn't finish starting up, or displays a prohibitory symbol at startup.
- You see a message that you're using an unsupported or incorrect version of the Mac operating system.
- Your Mac doesn't respond to your trackpad, mouse, or keyboard.
- Apps unexpectedly quit.
- Your Mac doesn't sleep or wake.
- You don't hear any sound from your Mac.
- The fans in your Mac are louder, because they're spinning faster.
- The image on your display appears to shrink, has black bars around it, or appears tinted.
- You can't use Bluetooth or Wi-Fi.
Apple A1286 MacBook Pro Mid 2009 Intel Core 2 Duo 2.66GHz 8GB RAM 128GB SSD 15' $65.00 12 bids. Mac OS X 10.10, Yosemite: Processor Type: Intel Core 2 Duo: Processor Speed: 2.8GHz: Memory: 8GB RAM. 2009 Apple Macbook Pro 15' Core 2 Duo 2.8GHz. 120GB SSD Hard Drive. Yosemite is installed. No Power adapter is included. Yosemite Compatible Mac Models: Model: Year: MacBook 13-inch: Early 2009 or later: MacBook 13-inch (aluminum) Late 2008: MacBook Air: 2008 or later: MacBook Pro 13-inch: Mid 2009 or later: MacBook.
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Which Mac operating systems are compatible?
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The version of macOS that came with your Mac is the earliest version compatible with that Mac. To find out whether your Mac is compatible with a later version of macOS, check the system requirements:
If your Mac won't start up from a compatible version of macOS, it might require a specific build of that version. To get the correct build, reinstall macOS or upgrade to a later version of macOS. Ccleaner download for mac el capitan.
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Macbook Pro Mid 2009 Battery
- To restore a Time Machine backup that was created on a different Mac, use Migration Assistant.