Unable to install macOS High Sierra 10.13.3 Update

That build number is for an iMac Pro. Did you click on

If you have an iMac Pro, please install the macOS High Sierra 10.13.3 iMac Pro Update.first and then "Download"?

Problem solved. I downloaded the MacOS 10.13.3 upgrade from the App Store site and upgraded manually. It worked, though it took about 35 minutes to restart.

My problem earlier on was clearly when my MacBook Pro did the automatic download via the App Store app and got stuck installing halfway. With many trails & errors I managed to startup my Mac after restart with ALT pressed. I then chose the disk (not the installer) and it started up on the old MacOS 10.13.2. This made it possible to use my Mac and go to the App Store website.

I am glad I ignored the screen telling me I have a serious problem and should bring it in for repairs, which means, where I live, losing my Mac for several weeks after they send it to Ireland. And that in a country where many Apple parts were invented ;-) IT IS ABOUT TIME APPLE OPENS A REAL APP STORE HERE IN ISRAEL.

SOLVED

Been out with the flu, and saw this suggestion on another thread (I think). Downloaded a new copy of the iMac Pro Update today, put it in Macintosh HD, booted into Safe Mode ran installer no problems. Seems to be running fine.

Click on the "10.13.2" to see the build number. what does that say?

I spoke to Help Desk and they said to trash (and empty) the installer (which ends in .dmg) from the downloads folder. Shut down, press shift-option-command-start simultaneously for 10secs. Then release all and press start. The update started and completed.

I had consistent problems with the update of MacOS 10.13.3 on my MacBook Pro using the App Store App on my laptop.

I decided to go to the apple website and download the DMG file of MacOS 10.13.3 and then did the update. Worked perfectly.

I don't know why and how, but it simply did.

So my problem is solved.

I tried to install the upgrade several (many) times without success, so I finally contacted Apple Support - first on a chat, and then with a live phone call. They talked me through uninstalling the 10.13.2 OS, and then installing 10.13.3. Finally, it worked.

What version of High Sierra is listed in "About This Mac"?

Got onto Apple Support. Boot in Safe Mode. Go to downloads folder. Trash the installer. Empty Trash. Shut Down. Restart. In my case the install then completed without problems.

UPDATE:

I just tried a second time and now all is fine: my iMac if finally with 10.13.3

Here is my suspicion:

— The first time a clicked on the “Update all” in my App Store / Updates section, the process started with an IMMEDIATE restart. And then all the typical upgrade black screens & auto-restarts. But i finally ended with the same 10.13.2 sytem (and the same “Update Available” option in the App Store

— The second time was different: I saw first a download process (a few minutes) and then, yest, the automatic restart and update process.

This second process ended with a white screen where Apple answer to accept to share analytics and that stuff (I always press “Yes”). The first time I didn’t saw that.

My suspiction: since the first time the machine restarted immediately, I suposse that, maybe, the upgrade packaged was already downloaded in my machine since some days ago (I prefer to waith some days to upgrade). And, maybe, that first package contained some “bad” part (just guessing here, of course…).

The second try started with a download of a “fresh” updater, which, maybe Apple has fixed on a later time?

Obviously, I have no idea about what was really behing that first fail… Anyway I’m happy that my computer is finally updated :-)

Hi,

I'm have the same issue in t lat 2017 27" iMac, its stuck on macOS 10.13.2 (17C88)

I've tried installing the update in Save Mode"

trying a full install for the App Store

and

Via the recovery mode.

Via the App store my mac reboots an starts to install the progress bar move about 10-15% before the screen goes black. It then starts as normal but when i check the version it's still on macOS 10.13.2 (17C88)

When i tried the recovery mode the install failed with an error message stating this. Again the mac will restart and is still on 10.13.2.

Any ideas how to fix this!!

Giles

I have exactly same issue on a Mac Pro 5,1

My High Sierra installation was a clean 10.3.2 (17C2120) early January. The update is not available from the App Store, Apple is probably holding it back due to this BUG that they have to resolve before 17C2120 can be updated to 10.13.3.

Let me know if you find out anything, we will probably see a valid update from the App Store soon, hopefully.

Sorry, my fault. I read some incorrect info. I should know better than to trust the web. 😊

Did you ever run a beta version on your MBP?

Hmmm. I don't know then. You may be stuck with downloading the full 10.13.3 installer from the App Store.