The Redmi Note 13 Pro 5G (Garnet) receives a feature-packed update with the release of Project Matrixx v12.3 Official. Maintained by FlyingSquirrel, this Android 16 build combines the June 2026 Android Security Patch with numerous source-level improvements, new customization features, and several device-specific optimizations aimed at enhancing performance, multimedia, and overall user experience.
Based on HyperOS 3.0.5.0.WNRMIXM, Project Matrixx continues to evolve as one of the more customizable Android 16 ROMs while maintaining excellent stability for daily use.
Project Matrixx v12.3 Information
- ROM Name: Project Matrixx v12.3
- Android Version: Android 16
- Device: Redmi Note 13 Pro 5G (Garnet)
- ROM Status: Official
- Security Patch: June 2026
- Developer: FlyingSquirrel
- Updated: 26 May 2026
What’s New in Project Matrixx v12.3?
June 2026 Security Patch
The ROM has been updated with the June 2026 Android Security Patch, bringing Google’s latest security fixes and platform improvements.
New IdleManager Sleep Mode
A new Sleep Mode trigger has been integrated into IdleManager, helping improve battery efficiency by managing device behavior more effectively during idle periods.
Axion Theme Store
Project Matrixx now includes the Axion Theme Store, allowing users to customize the appearance of the system with additional themes and visual enhancements.
Expanded Monet Customization
Material You customization has been expanded with more detailed Monet controls, giving users greater flexibility when personalizing colors and system accents.
Partial Screenshot Action
A new Partial Screenshot action has been added, making it easier to capture selected portions of the screen without using third-party applications.
New Lockscreen Clock Styles
Several new lock screen clock designs have been introduced, providing additional personalization options for users.
Edge Light Preview
The update adds a preview option for Edge Light, allowing users to view lighting effects before applying them.
Optional Google Apps
Support for optional Google Apps packages has been improved, giving users greater flexibility during installation.
DocumentsUI Refresh
The built-in DocumentsUI application now features a refreshed Material Design interface for a more modern appearance.
OTP Fixes
Several applications that previously experienced issues with One-Time Password (OTP) detection have been fixed, improving compatibility during verification processes.
New Recents Styles
Launcher3 now includes multiple Recent Apps layouts, allowing users to choose the multitasking interface that best suits their preferences.
Sandbox Vault Fix
An issue preventing files from being added to Sandbox Vault has been resolved.
Additional Source Optimizations
The ROM also incorporates several low-level optimizations from CodeLinaro (CLO), contributing to improved performance and system efficiency.
Device-Specific Improvements
In addition to upstream changes, several Garnet-specific improvements have been included.
Updated HyperOS Base
The ROM is based on HyperOS 3.0.5.0.WNRMIXM, bringing updated vendor components and improved hardware compatibility.
Lunaris Dolby Integration
Lunaris Dolby is included, enhancing audio quality across supported media playback scenarios.
KernelSU Next and SUSFS
The ROM ships with integrated KernelSU Next (KSUN) and SUSFS, providing built-in support for advanced root environments.
GPU Driver Update
The previous V@0863.1 GPU driver has been removed as part of ongoing graphics optimization.
Face Unlock Fixed
Face Unlock functionality has been corrected, improving reliability and authentication performance.
Spatial Audio Improvements
Several bugs affecting Spatial Audio have been resolved for a more consistent listening experience.
Reduced App Optimization Heat
CPU usage during Dex2OAT application optimization has been limited to reduce device heating, improving comfort during first boot and major updates.
Better Dolby Audio
Dolby configuration files have been updated using those from the Xiaomi 14, providing improved audio clarity.
Dolby Vision Playback Fixed
Issues affecting Dolby Vision playback have been resolved, resulting in better HDR video compatibility.
Improved Haptic Feedback
Haptic feedback has been refined, delivering a more responsive and natural vibration experience.
Device as Webcam
Support for DeviceAsWebcam has been added, with High Quality mode enabled by default, allowing the phone to function as a webcam when connected to a compatible computer.
Expanded Carrier Support
VoLTE and VoWiFi have been enabled for all supported carriers, improving calling compatibility.
Additional Optimizations
Several unnecessary components have been removed, including:
- DSPVolumeSynchronizer
- Vulkan pipeline cache property
Additionally, PowerOffAlarm support has been added.
Official Changelog Highlights
Source Changes
- June 2026 Security Patch
- IdleManager Sleep Mode
- Axion Theme Store
- Partial Screenshot
- Expanded Monet customization
- New lock screen clocks
- Edge Light preview
- Optional Google Apps
- Updated DocumentsUI
- OTP fixes
- New Launcher3 Recents styles
- Sandbox Vault fixes
- Additional CLO optimizations
Device Changes
- HyperOS 3.0.5.0.WNRMIXM base
- Lunaris Dolby included
- KernelSU Next included
- SUSFS included
- Removed older GPU driver
- Face Unlock fixes
- Spatial Audio fixes
- Reduced Dex2OAT CPU usage
- Updated Dolby XML from Xiaomi 14
- Dolby Vision playback fixes
- Improved haptics
- DeviceAsWebcam support
- VoLTE and VoWiFi enabled
- Added PowerOffAlarm
- Removed DSPVolumeSynchronizer
- Removed Vulkan pipeline cache property
Installation Notes
Before installing the ROM, users should:
- Flash the appropriate firmware recommended by the maintainer.
- Back up important data before updating.
- Follow the official installation instructions.
- Use proper logs when reporting bugs.
Important Links
Support Group:
https://t.me/ZeroTwoBuildsSupport
Source Changelog:
https://github.com/ProjectMatrixx/android_vendor_matrixx/blob/16.0/changelog.md (if the maintainer updates this location, refer to the latest official Matrixx changelog)
Credits
Special thanks to everyone who contributed to this release:
- FlyingSquirrel – Official maintainer
- Grewal – Base device tree
- bezke – Dolby Vision playback fixes
- montfort_1607 – Haptic feedback improvements
- Contributors from the Project Matrixx, Lunaris, and CodeLinaro communities
Final Thoughts
Project Matrixx v12.3 is a substantial Android 16 update that combines extensive source-level enhancements with meaningful device-specific improvements for the Redmi Note 13 Pro 5G. The inclusion of the June 2026 security patch, expanded customization options, improved multimedia features, integrated KernelSU Next, and numerous hardware optimizations makes this one of the most feature-rich releases available for Garnet.
From Dolby Vision fixes and enhanced haptics to DeviceAsWebcam support and expanded carrier compatibility, this release demonstrates a strong focus on both functionality and everyday usability. If you’re looking for an Android 16 ROM that balances performance, customization, and modern features, Project Matrixx v12.3 is an excellent choice for the Redmi Note 13 Pro 5G.
