Samsung Galaxy Note 9 gets One UI 3.1 port based on Android 11
Update Samsung Galaxy Note 9 to Android 11 with latest NOBLE ROM 1.3 based on One UI 3.1
Samsung Galaxy Note 9 One Ui 3 & Android 11 Update🔥 Samsung Note 9 New Update Android 11 One Ui 3.0 - YouTube
This is Noble rom, an android 11 custom rom for the Galaxy Note 9 and S9 by AlexisXDA on XDA. Although it is said to have some bugs, i have not encountered
Samsung Galaxy Note 9 users can now get Android 11-based One UI 3.1 [Download Link] - Sammy Fans