Third-party ROM brings Android 11 to the Galaxy Note 9 - 9to5Google
One ui 3.1 for Galaxy S9/S9+ is finally here! (not officially) : r/GalaxyS9
Download and Install Galaxy S9 & S9+ One UI 3.1 ROM (Android 11) - NaldoTech
Samsung Galaxy S9 and Note 9 receive One UI 3.1 with this Italian port
Samsung One UI 3.1 Update Brings Select Powerful Features From the Galaxy S21 to the Galaxy S20, Galaxy Note20 and Galaxy Z Series – Samsung Global Newsroom
This is the Galaxy S9 One UI 2.1 firmware being tested by Samsung - SamMobile
Here are the phones that will get Samsung's One UI 2.1 - Android Authority
Galaxy S9 64GB (Boost) Phones - SM-G960UZKABST | Samsung US
One UI Beta 3 on Galaxy S9 & S9 Plus Review - YouTube
Installing One UI 3.1 Android 11 Rom For Galaxy S9+/S9/Note9: New Method - YouTube