Samsung S3 Custom Rom Android 10 Link

The installation process requires completely wiping your phone’s internal storage. Back up all crucial data first.

Ensure your device is charged to at least 70% to prevent unexpected shutdowns during the flashing process.

This guide will use as the primary example. The process is very similar for any custom ROM. samsung s3 custom rom android 10 link

While Android 10 brings a fresh interface, the S3 is severely limited by its 1GB/2GB of RAM. Expect bugs and reduced performance. 1. What You Need (Downloads & Links)

Running Android 10 on a 2012 device requires a few adjustments to make it snappy: This guide will use as the primary example

The international GT-I9300 comes with an easily unlockable bootloader, which is required for custom recoveries.

Connect your Galaxy S3 to your computer and copy the downloaded ROM .zip file (e.g., lineage-17.1-20200208-UNOFFICIAL-i9300.zip ) to your phone's external SD card. Do not unzip the file. Expect bugs and reduced performance

(Always check XDA Thread " [ROM][UNOFFICIAL][Q] LineageOS 17.1 for Galaxy S3" for the latest build hash)