A legendary project in the Exynos development community. The developers successfully port newer versions of One UI (harvested from newer flagship devices like the Galaxy S21 or S22 series) down to the Galaxy S9 Plus. This yields modern Samsung features, updated visual styling, and full hardware compatibility without sacrificing the signature Samsung identity. Essential Prerequisites Before Flashing
Stock AOSP cameras can underutilize Samsung's variable aperture hardware. To recover flagship-grade photography capabilities, download a community-optimized GCam (Google Camera) Port tailored for Exynos processors.
If you plan to the device for advanced root-level applications.
Thanks to the XDA dev community for keeping Exynos alive. samsung s9 plus exynos custom rom
From the ROM’s XDA thread or official website, download:
A clean, bloat-free experience that prioritizes stability and speed.
This guide is exclusively for the Exynos variant (typically SM-G965F or SM-G965F/DS ). Do NOT attempt this on Snapdragon models (SM-G960U/A/V/T), as their bootloaders are generally locked and flashing these files will brick them. A legendary project in the Exynos development community
If you are moving from Samsung’s stock One UI to any custom ROM, you again after flashing:
| Custom ROM | Android Version | Interface | Best For | Key Features | Considerations | | :--- | :--- | :--- | :--- | :--- | :--- | | | Android 14/15 | AOSP (Stock Android) | Stability & Daily Use | Lightweight, stable, wide compatibility, based on AOSP, active updates | Less feature-rich than others | | Noble ROM | Android 14/15 | One UI 6.1/7.0 | One UI & Galaxy AI | Latest One UI ports, Galaxy AI features, modern Samsung experience | Can have stability issues, may miss some stock features | | Project Hyper | Based on HyperOS 2.0 | HyperOS (Xiaomi) | Unique Experience | Unique HyperOS interface, heavily debloated for performance | Niche ROM, less widespread than others | | DuhanROM | Android 14/15 | One UI 6.1/7.0 | One UI & Features | Modern One UI, extensive feature set from S22 Ultra port | May have bugs (e.g., camera switching), requires precise flashing | | /e/OS | Android 10/11 | Custom / Privacy-focused | Privacy & De-Googling | De-Googled, privacy-focused, built for daily use | Based on older Android versions, may lack some features | | crDroid | Android 14 | AOSP (Stock Android) | Customization | Balance of performance, stability, and customization, user control | | | Pixel Experience | Android 10/14 | Pixel UI | Stock & Pixel Features | Pure Google Pixel experience with Pixel features | Based on older Android versions |
In Odin, click the slot and select your TWRP .tar file. Go to the "Options" tab in Odin and uncheck Auto-Reboot . Thanks to the XDA dev community for keeping Exynos alive
DuhanROM is a port of Samsung’s latest One UI from the Galaxy S22 Ultra (Android 14) and more recently from the Galaxy S24 FE (Android 15 / One UI 7.0). It brings modern Samsung software to the S9 Plus while keeping the ROM heavily debloated and optimised for the Exynos 9810.
crDroid is built on LineageOS but adds a deep layer of customisation options. It offers a highly polished experience with extras like custom status bar icons, lock screen clocks, animation scales, and even system‑wide font changes.
Pixel Experience aims to give you the exact same interface, apps, and features as a Google Pixel phone. It includes all Pixel‑exclusive goodies: the Pixel launcher, Pixel live wallpapers, Google Camera with Pixel’s image processing, and the Pixel boot animation.
Ravi suggested a middle path. They would replicate and fragment the caches, distributing bits across older phones — obsolete Exynos models like his S9+ — and hide them inside benign app updates and obfuscated storage compartments. The message would survive as culture rather than a single repository. They would seed a network of devices configured to rebroadcast the carrier at low power during routine off-peak hours, making it indistinguishable from noise unless you knew the pattern.
LineageOS is the most famous custom ROM, known for its stability, near‑stock Android interface, and regular over‑the‑air (OTA) updates. Unofficial builds are available for the S9 Plus Exynos for Android versions up to 14 and 15.