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macOS Sierra upgrade brick MacBook Pro

My MBP 12,1 (Early 2015) was running El Capitan, started the upgrade while plugged in and went to bed. Came back this AM to a Gray screen with cursor stuck in Upper-Right hand corner.  With no response I held power to turn off.  Turned it back on and get some jibber in the upper left corner then goes to Error screen press any key to restart.  Basically a boot loop. I am getting varying results based on the steps I use.  Here is what I have tried and the result.

Ran CMD+R for Recovery mode on boot.

Loads to Sierra Recovery page. I figure okay NBD I will resinstall maOS. When I clicked on the button, it never loaded after ten minutes.  I was able to graceful shutdown.

Tried on boot to clear NVRAM. CMD+ALT+P+R on boot.  I hear the dong twice let go and get the same original error, press any key to reboot.
Then I held down power to shutdown and try Recovery again.

This time I was able to get the macOS page to load and see my drive. I started the install, at the 5 minutes left point it failed with a (null) error. I though that was odd, so I was able to close the installer and run Disk Utility. After about a minute it loads only the ~2GB recovery disk/partition.  It does not have my main SSD or partitions. (Pictures attached)

Now I am thinking this could be hardware so I open Terminal in the same session and type "diskutil list"  I see that my main SSD is listed at Disk0 and I see my partitions appear to be in order. I gracefully shutdown.

Power on and see Folder with ? in the middle of the screen.

Perform a SMC Reset Left-Shift+CTRL+Alt+Power for about 15 seconds. Let go and power on. Same error about press any key to reboot returns..

I think okay maybe something is corrupted in my recovery partition so I load Online Recovery, it takes 2 hours and loads the Yosemite Recovery tools.  Disk Utility does not show my Disk, Terminal "diskutil list" does not list my disk. I try rebooting and get the Folder ? again.

I was lucky and backed up to my time capsule before I started the upgrade, but so frustrating this thing has been flawless until the upgrade and now suddenly I am getting intermittent issues with my drive not being recognized.

Any tips out there?

I have contacted apple and I think she was over her head on this one and just scheduled an Appt for Friday evening at the local retail store.  Since this is my primary computer for work I am hoping to get a helpful genius out there to get this back online.

Thanks!

UPDATE: I took it in the Apple store. Right away it showed that the SSD was connected. He ran HW Diag and everything checked out.  He then started an OS install of Sierra within minutes it failed.  Hmm he says, we boot back into recovery and the drive is missing. Next he runs the Diag again and the drive is not found. He tells me it is a Hardware failure and he recommends I pay the flat rate $280 to get it fixed.  I am two weeks out of warranty and they want me to pay..

I am shocked that an OS upgrade is the end all for my SSD/Logic Board.  So being the skeptic geek that I am I bought a brand new same exact computer and took it home.  I swapped the SSDs and sure enough my system boots right up and the new system does not boot the old drive. It seems I have narrowed the problem down to the SSD I put Sierra on bootable USB and reinstalled the OS on the New computer with my "Broken" drive.  Loads and boots fine.

Thanks Apple!

Hello Tyler,

Your situation is similar to experiences I and another have had with several older Macs. I have seen 3 MBPs (late 2009 to early 2011) fail to run properly after upgrading to either Sierra or HS. My friend who repairs liquid damaged macs has seen extensive problems with computers brought to him for repair (non liquid damaged ones). The common factor is the customer just upgraded to Sierra. It seems it can corrupt hard drives and graphics cards. These machines run Mavericks absolutely perfectly.

As soon as the Upgrade is installed (everything seems to start up okay), the problems will show as soon as you do a manual re-start. All sorts of kernel panics or random, looping re-starts appear.

Reformat the drive back to Mavericks, everything is humming perfectly. There is something big happening here, but hard to find conclusive fixes.

There have been some upgrades that have worked fine, though. In one case, a 13" 2010 MBP had a SSD installed and upgraded to Sierra and worked fine for months. Then that same SSD was put in a 15" 2010 MBP (that runs perfect with Mavericks), and as soon as a restart was done ... Kaboom! Kernel panic, white text on black screen, etc etc.

Anyone got a clue as to what is happening?

最后更新：2017-10-19 11:32:51

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