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Apple Computing Products:
macOS - Notebook Hardware
MacBook Pro mid 2015 15 inch retina - flicker and flash!
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<blockquote data-quote="pm-r" data-source="post: 1811054" data-attributes="member: 175845"><p>Think I would be inclined to create a new separate partition and install a brand-new OS in it and boot from that as a brand new user and see if things don't work a bit better.</p><p></p><p>If you get the same problem, I'll have to swallow Crow and apologize to insulting the dealer and possibly admit they were correct. But it's sure acting like a non-Apple software-caused problem.</p><p></p><p>But that maybe going to be pretty hard to do when you can't even boot the machine other than in Safe Boot Mode and I'm not sure If one come do an install when booted into safe mode. If not, then you may have to use Target Disk Mode and using another additional Mac.</p><p></p><p>PS: If you already have a compatible good working backup/clone on an external drive, try using it as a boot device and see if the problem disappears.</p><p></p><p></p><p></p><p></p><p></p><p></p><p>- Patrick</p><p>======</p></blockquote><p></p>
[QUOTE="pm-r, post: 1811054, member: 175845"] Think I would be inclined to create a new separate partition and install a brand-new OS in it and boot from that as a brand new user and see if things don't work a bit better. If you get the same problem, I'll have to swallow Crow and apologize to insulting the dealer and possibly admit they were correct. But it's sure acting like a non-Apple software-caused problem. But that maybe going to be pretty hard to do when you can't even boot the machine other than in Safe Boot Mode and I'm not sure If one come do an install when booted into safe mode. If not, then you may have to use Target Disk Mode and using another additional Mac. PS: If you already have a compatible good working backup/clone on an external drive, try using it as a boot device and see if the problem disappears. - Patrick ====== [/QUOTE]
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Apple Computing Products:
macOS - Notebook Hardware
MacBook Pro mid 2015 15 inch retina - flicker and flash!
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