Hi everybody I'm also on a TA 1033 Morocco, I have been on 8.0 official since Monday night. I've done the trick mentioned around, get into the apps, show the system ones via the 3 dots, get to Google framework services, wipe its cache and data...
But I had to do it more than 10 times.
The best way I found to get it, is to close all the other apps before doing the cleaning of cache and data ( the only thing open is the settings )
Then you go looking for the update, and once again you gotta be careful, the update showed up for me the first time and disappeared. Don't click like crazy on " search update " it shows up sometime with a bit of delay, just after the first try.
So do the wipe, go to the update, click once on "search for update" wait till it finishes, wait 5 seconds more, and if you're lucky it will show up and then you gotta be fast before it disappears.
For the features everything works great, Dolby Atmos is back, woohoo ! And yes it's fully functional, nothing about the double tap to wake :/, hope to see more updates something like 8.1.
Clear google framework data did the job also on my ta1033 but :) i was not able to install it, once i restarted the phone it came to boot up screen xD i had to swipe data / factory reset in order to install the update ! Now it is even faster an I am very pleased with my phone!
My Nokia 6,TA-1033, running on Oreo beta did't get Oreo stable yet. The phone of my college, Nokia 6,TA-1033,running the 7.1.2. get the Oreo stable yesterday. Same model,same operator,same network...maybe the problem is Oreo Beta? Bosnia&Herzegovina.