However, as he picked up the S3, Alex couldn't help but feel a pang of nostalgia. He remembered the excitement of unboxing the phone, its sleek design, and the snappy performance. But, as he booted it up, his heart sank. The phone was running on Android 4.3, a relic of a bygone era.
Since custom ROMs usually don't include Google services, you will need to flash an OpenGApps package (select ARM, Android 10, Nano or Pico). The Story: Breathing New Life into a Legend
Stock Samsung recovery partitions strictly reject custom-built Android software packages due to signature checks. You must swap it out for Team Win Recovery Project (TWRP) using Odin:
The Samsung Galaxy S3 (GT-I9300) is one of the most iconic smartphones in history. Released in 2012, it officially topped out at Android 4.3 Jelly Bean. However, thanks to the dedicated legacy developer community, you can breathe new life into this classic device using a custom ROM based on Android 10 (LineageOS 17.1).
Note: This is an unofficial/alpha build. Always check the thread for the latest daily builds by developer "ChronoMonochrome" or similar. Prerequisites Before Flashing
You need a modern version of TWRP that supports Android 10 block structures. Download Link: TWRP for Samsung Galaxy S3 (i9300) Step 2: Root and Install TWRP Recovery
Download the OpenGApps package. Select Architecture: ARM , Android: 10.0 , Variant: Pico or Nano . The S3 has limited system space; larger variants will fail to install. Step 2: Install TWRP Recovery via Odin Download Odin (v3.12 or similar) to your Windows PC. Turn off your Galaxy S3.
Once you have successfully booted into Android 10, the device will likely feel slow compared to modern phones. Here are tips to optimize the experience:
For the , there is no official Android 10 support. However, developers have released unofficial versions of LineageOS 17.1 (based on Android 10) for this device . Top Custom ROMs for Android 10
If you would like to proceed with modifying your device, please tell me:
Samsung Galaxy S3 (GT-I9300) Android 10 via unofficial custom ROMs, most notably LineageOS 17.1