After 3 months of testing, here is my review of LineageOS 21 on the S9+ (Exynos).
For the , custom ROMs are the primary way to access modern Android versions and updated features long after official support ended. As of April 2026, the development community remains active, with recent ports bringing Android 15 and 16 to the aging flagship. Top Custom ROMs for S9 Plus Exynos (2025–2026) samsung s9 plus exynos custom rom
You will lose Samsung-specific features like VoLTE and Wi-Fi calling . Duhan ROM : After 3 months of testing, here is my