How the Galaxy S10 Is Running Android 15 with One UI 7 and Galaxy AI in 2025

Galaxy S10 in 2025: Running Android 15 with One UI 7 and Galaxy AI

The Samsung Galaxy S10 was released in 2019, but in 2025, it’s making a remarkable comeback. Thanks to a community-developed port, this six-year-old device is now running Samsung’s latest One UI 7 based on Android 15, complete with the Galaxy S25 Ultra’s AI features. This upgrade completely transforms the phone, making it feel like a modern flagship all over again.

A New Life with One UI 7

Once the new software is installed, the experience changes dramatically. The animations are smoother, the interface is refreshed, and the overall feel of the device becomes far more modern. Despite being outdated on paper, the Galaxy S10 handles One UI 7 surprisingly well. It brings a polished, premium feel to the user experience that rivals newer devices.

Even better? Galaxy AI features—once advertised as exclusive to newer models—are fully functional on this port. From enhanced editing tools to smart suggestions, it’s all here.

Performance and Stability

Using the Galaxy S10 with this ported firmware for several days has revealed no major issues. There have been no boot loops, crashes, or overheating problems. Everything from animations to haptics feels smoother, even though the display is still locked at 60Hz.

The Exynos 9820 processor is holding up well, demonstrating that older hardware can still support newer software when optimized correctly. The community effort behind this transformation—led by the developer ExtremeXDA—deserves praise. It’s a clear example of how much potential these older devices still have.

Galaxy AI Features Working Flawlessly

Despite not being officially supported by Samsung, most Galaxy AI tools are functional:

• Note Assist: Summarizes, reformats, and translates notes seamlessly.
• Photo Assist & Editor: Remove or replace objects with AI—results look natural.
• Audio Eraser: Deletes unwanted background sounds in videos.
• Voice Recorder with Transcription: Converts audio to text accurately.
• Galaxy Brief & Call Assist: Provide real-time summaries and enhancements.

Features like Writing Assist, Interpreter, and Health Assist are also working, adding to the futuristic feel.

Camera and Multimedia

Camera functionality is mostly intact. Regular photo and video capture works well, even with third-party apps like Instagram and Snapchat. However, there are a few known issues:

• Portrait Mode doesn’t work between lenses.
• A green glitch appears when switching lenses.
• Using 5x zoom can cause bugs that require restarting the camera app.

Apart from these minor hiccups, the camera experience is solid.

Battery, Connectivity, and Biometrics

Battery performance remains reliable. There’s no fast draining or unusual heat build-up, even during gaming or multitasking. Connectivity features like Wi-Fi, Bluetooth, mobile data, and Samsung DeX all function normally. Even some banking apps continue to work.

While Face Unlock is broken, the fingerprint sensor operates without issues. Interestingly, Bixby has been replaced by Gemini, which many users will consider a welcome change.

Customization and Good Lock Support

The new interface breathes fresh life into the Galaxy S10’s AMOLED display. The icons, layout, and color palettes look refreshed and vibrant. One UI 7 brings expanded customization options:

• Redesigned lock screens
• Resizable widgets
• Theme support via Theme Park and Wonderland
• Keyboard customization through Key Cafe
• Enhanced home screen personalization

Good Lock modules are also supported, allowing for deep system customization. You can tweak nearly every visual and functional aspect of the device.

Important Notes Before You Install

This One UI 7 port only works on the Exynos variants of the Galaxy S10. If you’re using a Snapdragon version, unfortunately, this method won’t apply.

This is a custom ROM—not an official Samsung update—so some bugs or missing features are expected. Known issues are documented on the developer’s GitHub page, and it’s strongly advised to read them before proceeding.

Also, unlocking the bootloader and installing a custom ROM will wipe your phone. This process is best attempted on a secondary device or only if you’re fully comfortable with advanced Android modifications.

Final Thoughts

The fact that a phone as old as the Galaxy S10 can run Android 15 with One UI 7 and Galaxy AI proves that Samsung’s older hardware still has a lot of untapped potential. If Samsung officially optimized newer software for these legacy devices, it could dramatically reduce e-waste and keep beloved phones alive for years longer.

For those who love experimenting and are willing to take the plunge, this is one of the most exciting revivals of an older phone in recent memory.

Disclaimer: Proceed at your own risk. This guide is intended for experienced users familiar with Android ROM flashing and bootloader unlocking.