As of late 2023/early 2024, the S9 Plus Exynos scene is mature but stabilizing. Most modern ROMs are based on Android 13 (Thirteen) or Android 14 (Fourteen).
Unlike the Snapdragon variant (which has a locked bootloader), the Exynos model is developer-friendly. Installing a ROM can provide: samsung s9 plus exynos custom rom
First boot takes 5-10 minutes. Be patient. As of late 2023/early 2024, the S9 Plus
| Problem | Solution | | :--- | :--- | | ROM won't boot (bootloop) | Go back to TWRP. Wipe Dalvik & Cache. If that fails, Format Data again. | | No SIM card detected | Flash the latest Exynos 9810 modem firmware via Odin (CP slot). | | Safetynet / Play Integrity fails | Flash Universal SafetyNet Fix via Magisk. Use Shamiko to hide root. | | Screen stays black after call | Proximity sensor calibration issue. Install "Sensor Test" app and reset proximity. | | Battery drains fast | Use BetterBatteryStats to find wakelocks. Disable "Mobile data always active" in Dev Options. | First boot takes 5-10 minutes
Best for: Pixel lovers.
Samsung stopped delivering security patches for the S9 series. Hackers love old Android versions. Custom ROMs like LineageOS or crDroid provide the latest security patches, sometimes within days of Google releasing them.
The S9 Plus launched with Android 8.0 (Oreo) and officially ended at Android 10 (One UI 2.5). By installing a custom ROM, you can: