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📢 LineageOS GSI for Samsung Galaxy A03 Core. Updated LineageOS 20/21 with device fixes, optimizations and stability improvements.

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MarsXz8656/LineageOs-Samsung-Galaxy-A03Core-gsi-adaptation

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LineageOS GSI Adaptation for Samsung Galaxy A03 Core

📱 Maintained unofficially by MarsXz

Base GSI by Andy Yan


🌍 Choose your language

English | Український | Русский | Қазақша


📺 Video Guide

If you prefer to watch the flashing and adaptation steps instead of reading the guides, a full video walkthrough is available on YouTube.

The video is primarily in Russian, but we recommend enabling English subtitles for a comprehensive guide.

Watch the Full Video Guide on YouTube


This project provides an adapted AOSP/LineageOS GSI specifically optimized for the Samsung Galaxy A03 Core.

The base system uses the LineageOS GSI by Andy Yan, with device-specific adjustments for better compatibility, stability and overall user experience.


⚠️ Disclaimer

You install this at your own risk.   I am not responsible for any bootloops, data loss, soft-brick, or hardware damage.

If you are not comfortable modifying your device — stop here.


📃 Documentation

I am not the original developer of LineageOS or the GSI itself.   I only maintain the unofficial adaptation specifically for the Samsung Galaxy A03 Core.

Updates may include:

  • device-specific optimizations  
  • kernel/vendor compatibility fixes  
  • my optional AIO optimization module  
  • stability improvements   

💾 Flashing Steps

Click to view in English


💾 Adaptation Steps

Click to view in English


⭐ Features

  • Device-specific optimizations for the Samsung Galaxy A03 Core
  • Removal of unnecessary components not used on this device
  • Hidden Treble Settings for a clean full ROM-like experience     To enable Treble settings:   ```bash   su -c "pm enable me.phh.treble.app/.TopLevelSettingsActivity"
  • Offline charging automatically reboots the device     (prevents being stuck at the Samsung logo on some kernels)

⛔ Known Issues

  • VoLTE is not supported
  • Incorrect mobile signal bar display (always shows 2 bars regardless of actual signal strength)

🔧 Future Fixes

The author may release a Magisk module in the future that could fix some of these issues.


📌 Sources

  • LiteGApps — for lightweight GApps packages
  • LineageOS — for their amazing open-source ROM
  • Andy Yan — for maintaining the LineageOS GSI