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MP 1,1-5,1 Max Pro 5.1 stuck in 100% progress bar unable to access recovery mode after power outage

Q

qwerty4321

macrumors newbie
Original poster
Aug 20, 2019
1
0
Hi,
My Mac Pro 5.1 has experienced a power outage, and after that I have been unable to boot it succesfully.
I get to the Logo screen with the progress bar getting slowly to 100% and then it stays there.
I have tried all shortcuts when booting, and I haven't even been able to get the Recovery mode to function: when pressin Command + R, nothing appears.
When booting holding the "Option" key, I get to the choice of the volume, between Macintosh HD and Recovery 10.13.6, but when choosing either option, the progress bar gets to 100% and nothing happens further.
The system was on High Sierra.
Could anyone give me some suggestion on what to do?

Thanks a lot!
 
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