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Sierra killed my MacBook Pro

Update to the latest Sierra. Gone through the suggested rigmarole after my MacBook failed to restart. Safe mode doesn't work. Tried to restore from back up etc. Now I've lost lots of data including 6 months of accounts. NOT HAPPY. Now MacBook won't reboot again!  Pig sick of being fobbed off with ******** updates and excuses. 

The problem is not the update. If you have lost data it's because you did not backup, then updated incorrectly.

 

Possible Fixes for El Capitan and Later Installations

 

You should try each, one at a time, then test to see if the problem is fixed before going on to the next.

 

     Be sure to backup your files before proceeding if possible.

 

  1. Resetting your Mac’s PRAM and NVRAM
  2. Reset the System Management Controller (SMC)
  3. Start the computer in Safe Mode, then restart normally. This is slower than a standard startup.
  4. Repair the disk by booting the from the Recovery HD. Immediately after the chime hold down the Command and R keys until the Utility Menu appears. Choose Disk Utility and click on the Continue button. Select the indented (usually, Macintosh HD) volume entry from the side list.  Click on the First Aid button in the toolbar. Wait for the Done button to appear. Quit Disk Utility and return to the Utility Menu. Restart the computer from the Apple Menu.
  5. Create a New User Account Open Users & Groups preferences. Click on the lock icon and enter your Admin password when prompted. On the left under Current User click on the Add [+] button below Login Options. Setup a new Admin user account. Upon completion log out of your current account then log into the new account. If your problems cease, then consider switching to the new account and transferring your files to it - Transferring files from one User Account to another.
  6. Install Combo Updater Download macOS Sierra 10.12.4 Combo Update and install.
  7. Reinstall OS X by booting from the Recovery HD using the Command and R keys. When the Utility Menu appears select Reinstall OS X then click on the Continue button.
  8. Erase and Install OS X Restart the computer. Immediately after the chime hold down the Command and R keys until the Apple logo appears. When the Utility Menu appears:
  1. Select Disk Utility from the Utility Menu and click on Continue button.
  2. When Disk Utility loads select the drive (out-dented entry) from the Device list.
  3. Click on the Erase icon in Disk Utility's toolbar. A panel will drop down.
  4. Set the Format type to Mac OS Extended (Journaled.)
  5. Click on the Apply button, then wait for the Done button to activate and click on it.
  6. Quit Disk Utility and return to the Utility Menu.
  7. Select Reinstall OS X and click on the Continue button.


Ah yeah, my MacBook Pro is the same. It’s completely bricked.

 

And yeeeeeah, I’m trying to do the whole process with Camand R etc etc, but as soon as I hold the buttons, it shuts down. When I’m able to boot it up, I get a massive graphical glitch and then I have to shut it down.

 

I’ve already reinstalled the OS twice, I was going to revert it to a previous backup, but now I can’t even get to that screen without it crashing or freezing.

 

Apparently there’s something wrong with the RAM because occasionally it will beep three times at me when I try to turn it on.

 

It’s offically dead, and I’m 99% sure it’s Sierra. I’ve already done multiple restarts and redownloade, but it is officially dead.

最后更新：2017-10-07 10:54:34

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