Yea you will need to flash to a non carrier version of android 8.
If you download Sam firm and put in your device details and location code it will download the correct version for you.
Okay I've just register for the one ui programme gone to software updates and nothing yet is that normal? When will it come thru? Help
For me after 10 minutes..
Me too. S9+ from Samsung store on EE network, registered in the Members app in the UK.
No.sign of the download yet will be checking.
Have space on the device and updated all apps.