Samsung launched the Galaxy S20 series and Galaxy Flex with the One UI 2.1 in February 2020. The company rolled out the One UI 2.1 with popular features of the Galaxy S20 series to the Galaxy Note 10, Galaxy S10 series, and some other devices in March and April.

The company didn’t officially confirm the One UI 2.1 update status for the Galaxy Note 9 and S9 series yet. But Samsung’s community managers in different countries have already given opposing statements without the proper information.

It is still not clear whether or not the One UI 2.1 update will come to the Galaxy Note 9 or Galaxy S9 series, but we now have an unofficial One UI 2.1 ROM port of the Galaxy S20 series for the Galaxy Note 9.

Thanks to XDA developer AlexisXDA for providing the first One UI 2.1 ROM port for the Galaxy S9 Note 9.

Note: It only works on the Exynos variant, not for Snapdragon. A device warranty may be void.

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Download and Install One UI 2.1 for Galaxy Note 9:

HOW TO INSTALL:

Be sure to have latest MODEM & BOOTLOADER installed

Download AlexisRom.zip

Flash it through recovery

Follow aroma installer instructions

Reboot system

First boot could take 15/20 minutes!

After ROM booted and you are on the initial setup screen, go back in recovery and flash OneUIHOME FIX

DOWNLOAD LINK:

Galaxy Note 9 Alexis ROM 1.3

OneUIHOME_FIX (FLASH THIS RIGHT AFTER ROM BOOTED)

Latest TWRP Link:

Galaxy Note 9: Check XDA

Changelog:

SM-N96xF/FD supported.

Based on Android 10 Note9 Firmware with April’s security patches (DTCA).

Odexed, Hardly Debloated and added some tweaks for best performance and better battery.

Added some tweaks in order to have the best smoothness and general performance!

Make your ROM! MY aroma allows you to select everything you want to have on your phone in order to improve the user experience!

Disabled RMM Lock.

Google Pay working (Hide it with Magisk)

Secure Folder working

A lot of S20 Apps Ported!!!

Share Live from S20!

PRO VIDEO Mode from S20.

Single Take fully working.

Night mode on front camera.

New Live Focus with new backgrounds.

New MY FILTER option in camera.

Night mode on hyperlapse.

New Photo Editor.

Enabled Dolby on Game.

Option to put apps on deep sleep (will save a lot of battery).

Music Share working (you have to enable it with Activity Launcher

Power key in notification panel.

Samsung App Lock.

iOS 13.2 Emoji’s selectable in aroma.

S10 Multiple Wallpapers.

New Good Lock 2020 selectable in aroma

Dual SIM/SD tray lock fix

Important:

Single Take could cause sometimes “Camera Error”. Close all apps and reopen camera again!

If you perform a clean install FIRST BOOT WOULD TAKE 15/20 MINUTES!

If you get odm error at the end of installation is absolutely NORMAL

If you want to install Bixby Voice or Google App DON’T SELECT TTS Services in aroma!