Once this is done, unplug and replug the usb drive, shut down the machine.no need to have the erase destination box checked/ticked.In the Destination box, drag and drop the newly formatted Volume from step 4/5.dmg downloaded in step 1, you can either brose it or drag and drop it in the source bow. In this panel you will see two white input boxes, in source you will browse and select the.Click on the newly formatted drive Volume, then click on the tab restore (same row as erase).REformat this USB drive in Mac OSX HFS+ Journaled in disk utility. ![]() The following is my take on the Russian instructions, which I tested and confirmed they worked. The following has someone else's instructions but I updated link to a non-broken one for the firmware file. ![]() (you may not be able to upgrade to Mountain Lion however. ![]() Google: "Macbook Pro 2009 EFI firmware update 1.7."ĭowngrade the motherboard firmware back to EFI 1.6. This is a common know issue that Apple has not acknowledged.
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