Take advantage of the new features of the One UI interface on your Samsung Galaxy S9, S9 + today.
Samsung presented One UI a few weeks ago, its new overlay for Galaxy smartphones. Officially expected for early 2019, this new interface can already be installed on the Galaxy S9 and Galaxy S9 +, after registering for the One UI beta program, now open to France *. As a result, easy one-handed use and a new, more modern design including a dark theme. Here is how to proceed to take advantage of it as quickly as possible.
1. Download Samsung Members
Start by downloading Samsung Members, the application dedicated to the loyalty program for users of Samsung devices. It is from there that you can apply to participate in the One UI beta test program.
Download Samsung Members (Free)
2. Sign up for the beta tester program
If you haven’t already, create your Samsung account and log into it by deploying the hamburger menu and then tapping Hello in the Samsung Members app.
Then go to the Information notice menu. A Beta One UI Test Program Enrollment message is available. Tap on it to view its contents. Then click on the Join One UI Beta Program image, carefully read the warning from Samsung, and hit Save. Check the acceptance of the terms of use and confirm your registration by pressing Accept.

3. Download the updates
Once the registration is validated, open the Settings of your smartphone, then in the Software update menu, enter Manual download of updates. It is from this menu that the beta program updates will appear.

You then only have to validate their installation manually to start the installation of One UI and enjoy it immediately.
Update: * Contrary to what we announced yesterday, this manipulation is not yet possible on the Galaxy Note 9. Our apologies.