Make sure you backup first

Update Procedure(s)

Backup your current installation using Carbon Copy Cloner or SuperDuper;

You will have to update to the latest version of Clover. See MacMan's

Download the Software Update or Combo Update and run it to update to 10.12.4 - the updater will reboot upon completion;

Upon rebooting into Sierra, you can:

Check to see if your audio is working (If you enabled Realtek on-board audio using the latest MultiBeast for Sierra or

(Optional) Check to see if your TRIM setting has survived through the update (About this Mac > System > System Report > NVMExpress or SATA/SATA Express) - if not, use the "trimforce" Terminal command (1) ; if you've used the "trimforce" command in El Capitan, then it should "survive" the update, but check to make sure; and

Re-boot​ Check to see if your audio is working (If you enabled Realtek on-board audio using the latest MultiBeast for Sierra or toleda's CloverALC120 script , your audio should be OK),(Optional) Check to see if your TRIM setting has survived through the update (About this Mac > System > System Report > NVMExpress or SATA/SATA Express) - if not, use the "trimforce" Terminal command; if you've used the "trimforce" command in El Capitan, then it should "survive" the update, but check to make sure; andRe-boot​ (Optional for Samsung 950 M.2 NVMe SSD owners) You will need to await the update of your current installation using Carbon Copy Cloner or SuperDuper;You will have to update to the latest version of Clover. See MacMan's Updated Clover Required for Kext Injection in macOS 10.12.4 . Download and run the appropriate Clover update (Legacy or UEFI). Reboot.Download the Software Update or Combo Update and run it to update to 10.12.4 - the updater will reboot upon completion;Upon rebooting into Sierra, you can:(Optional for Samsung 950 M.2 NVMe SSD owners) You will need to await the update of RehabMan's patcher script and installation instructions.​

Backup your current installation using Carbon Copy Cloner or SuperDuper;

You will have to update to the latest version of Clover. See MacMan's

Download the Software Update or use the MAS update;

Run the Sierra 10.12.4 Mac App Store Update - the updater will reboot upon completion;

Upon rebooting, the Nvidia driver will prompt you to update to the latest driver and reboot when its completed it's installation;

(Optional for Samsung 950 M.2 NVMe SSD owners) See the Notes above on RehabMan's patch-nvme.

.​ your current installation using Carbon Copy Cloner or SuperDuper;You will have to update to the latest version of Clover. See MacMan's Updated Clover Required for Kext Injection in macOS 10.12.4 . Download and run the appropriate Clover update (Legacy or UEFI). Reboot.Download the Software Update or use the MAS update;Run the Sierra 10.12.4 Mac App Store Update - the updater will reboot upon completion;Upon rebooting, the Nvidia driver will prompt you to update to the latest driver and reboot when its completed it's installation;(Optional for Samsung 950 M.2 NVMe SSD owners) See the Notes above on RehabMan's patch-nvme..​

Please post help requests in the Sierra Desktop Support Forum section (not in this thread).

1

Code: sudo trimforce enable

- This update may break some of your Sierra functions, like audio and the nVidia Web drivers.- If you're using nVidia drivers for your GeForce GTX 750, 750Ti, 960, 970, 980, 980 Ti and the Titans 'Maxwell' graphics cards, you'll need to install the nVidia 10.12.4 Web driver(s) after the 10.12.4 update; link available in Post #1.- Nvidia is now supporting the GTX 1050/1060/1070/1080/etc. Pascal graphics cards.- For Samsung 950 M.2 NVMe SSD owners, you will need to await the update of RehabMan's patcher script and installation instructions.- For those who are using the MacPro6,1, iMac15,1, or iMac17,1 system definitions may need to re-apply the black screen fix. Thanks to pantrychef who pointed this out in Post #14 : see pastrychef's post on the need to wait for the updates of the Lilu.kext and NvidiaGraphicsFixup.kext .Here's the step by step way to update for those who aren't using the nVidia Maxwell graphics cards. For Nvidia Maxwell card users, see belowFor Nvidia Maxwell graphic cards users (see 2nd and 3rd note above), you'll need to do the following:Use the new Terminal trimforce command in the following manner: