OneUI 7.0 is Samsung’s next-generation user interface based on Android 15. This custom ROM brings OneUI 7.0 to the Samsung Galaxy S20 FE Snapdragon variants, giving users a chance to experience newer Samsung features that are not officially available for this device.

This build is marked DISCONTINUED, which means it will not receive long-term updates. However, it is still useful for users who want to test OneUI 7.0 features, Galaxy AI improvements, and performance changes on the S20 FE.

The ROM is built by an experienced Samsung developer and is based on official Samsung firmware sources. It focuses on keeping the Samsung experience intact while removing unnecessary system apps and adding useful enhancements.

This post explains what the ROM offers, how it works, and what users should know before installing it.

What Is This OneUI 7.0 ROM and Discontinued Status

This OneUI 7.0 ROM is a Samsung-based custom firmware made specifically for Qualcomm Snapdragon models of the Galaxy S20 FE. It is not an AOSP ROM and does not replace Samsung’s ecosystem.

What “Discontinued” Means

Since the project is discontinued:

• No major future updates are expected
• Bug fixes may be limited
• Community support may reduce over time

Discontinued does not mean unusable. Many discontinued ROMs still work well for daily use, especially for advanced users who understand custom ROM risks.

This ROM is ideal for:

• Testing Android 15 features
• Exploring OneUI 7.0 design
• Advanced users who enjoy experimentation

It is not recommended for beginners or users who need guaranteed long-term stability.

Android Version, One UI Base, and Firmware Details

This ROM is based on Android 15 with Samsung OneUI 7.0, making it one of the newest Samsung-based builds available for the S20 FE Snapdragon.

Software Base Information

• Android Version: Android 15
• One UI Version: OneUI 7.0
• Base Firmware: Galaxy S21 FE (G990B2XXSCHYE2)

Using a Galaxy S21 FE firmware base allows:

• Newer Samsung system components
• Updated OneUI design elements
• Compatibility with modern apps

Samsung firmware ports like this keep:

• Samsung apps
• OneUI animations
• Samsung camera and system services

This ensures the ROM feels like a real Samsung update rather than a third-party modification.

Key Features and Galaxy AI Enhancements

This OneUI 7.0 ROM includes several modern Samsung features and improvements.

Main Features

• Based on official Samsung firmware
• Debloated system for better performance
• Slightly de-Knoxed
• KnoxPatch implemented
• Custom kernel included
• KSU-Next supported for root

Galaxy AI Features

This ROM includes Galaxy AI features from newer Samsung devices, with the exception of Audio Eraser.

Galaxy AI improvements help with:

• Smarter system behavior
• Enhanced image and media processing
• Improved user experience across apps

These features make the S20 FE feel closer to newer Galaxy phones.

Included Kernel Features and Improvements

The ROM includes a custom kernel, which is highly recommended for proper functionality.

Kernel Highlights

• Based on Linux kernel 4.19.325
• Latest Qualcomm changes included
• MGLRU and LRNG backports
• Binder driver backported from Android 13
• FuseFS and IncrementalFS improvements
• New fingerprint drivers from Galaxy S21 FE
• Code quality improvements
• Reduced debugging for better performance

Important Kernel Note

⚠️ It is strongly recommended to use the included kernel.
Using another kernel may break features such as SD card support.

The kernel plays a major role in:

• System stability
• Performance
• Hardware compatibility