For Samsung A9 2018: Custom Rom

I spent three weeks on LineageOS 20 (Unofficial, maintained by a developer named Aarav on Telegram).

With the original 3800mAh battery (now several years old), I averaged 5.5 to 6 hours of screen-on time. That’s about 30 minutes more than stock. Idle drain is excellent—losing only 2-3% overnight. Adaptive battery works better here than on stock. custom rom for samsung a9 2018

(model SM-A920F), official software support ended with Android 10 . However, active community development continues through unofficial custom ROMs and Generic System Images (GSIs), which can bring modern versions of Android to the device . Current ROM Availability I spent three weeks on LineageOS 20 (Unofficial,

| ROM Name | Android Version | Stability | Customization | Battery Life | Best For | | :--- | :--- | :--- | :--- | :--- | :--- | | | 13 | High | Low | Excellent | Daily driver | | crDroid 10 | 14 | Medium | High | Good | Enthusiasts | | Pixel Exp. Plus | 13 | High | Medium | Very Good | Pixel fans | | Project Elixir | 13 | Medium-High | High | Good | Feature seekers | Idle drain is excellent—losing only 2-3% overnight