If you have never flashed a custom ROM before, follow this carefully.

Before diving into the installation, it is important to set realistic expectations. The Galaxy S3 features 1GB of RAM (and only 16MB of video RAM allocation in some configurations), which is significantly below the modern requirements for Android 10.

To prevent data conflicts between your old Android version and Android 10, a clean wipe is mandatory. Return to the main menu and tap . Tap Advanced Wipe .

Thanks to dedicated developers on the XDA Developers forums, you can bypass official limitations. Installing an Android 10 (LineageOS 17.1) custom ROM gives this legendary device modern privacy controls, updated security, and a clean interface. Prerequisites: Before You Begin

Swipe to confirm the flash. This process may take 3 to 5 minutes. Step 5: Flash Google Apps (GApps)