Unsuccessfully, I tried the following, with each continuing to hang as described above:īoot into recovery (including Internet Recovery) Initially I suspected hard-drive corruption and went about trying to remedy that. The boot would progress through the grey screen with the Apple logo and spinner, but just when it seems it should have switched to the login screen the Apple logo and spinner would disappear and hang on a blank grey screen. My MacBook Pro 15" Early 2011 with AMD Radeon HD 6750M exhibited display corruption and associated system crashes/resets over a period of two weeks before it entirely failed to boot. ![]() ![]() ![]() I found this according to my problem in this thread:īoot hangs on grey screen (even when booting from USB drive with fresh OS X install)
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