The Yet Another AOSP Project (YAAP) returns with a fresh Android 16 QPR2 update for the POCO X3 Pro (Vayu/Bhima). Maintained by grepfox, this official release focuses on refining the overall Android experience with numerous bug fixes, UI improvements, performance optimizations, and updated security patches.
Unlike feature-heavy custom ROMs, YAAP aims to provide a clean, polished, and responsive Android experience while carefully integrating useful enhancements that improve everyday usability without sacrificing stability. This update continues that philosophy by addressing several issues reported in previous builds, updating core system components, and improving display, launcher, and SurfaceFlinger behavior.
YAAP Android 16 QPR2 Information
- ROM Name: Yet Another AOSP Project (YAAP)
- Android Version: Android 16 QPR2
- Device: POCO X3 Pro (Vayu/Bhima)
- ROM Status: Official
- Developer: grepfox
- Updated: 18 June 2026
What’s New in This Update?
Latest Android Security Patches
This release integrates the May 2026 Android Security Patch, bringing Google’s latest security fixes to improve system security and protect the device against recently disclosed vulnerabilities.
Smoother User Interface
Several changes have been made to improve overall UI responsiveness. The Launcher has received optimizations to reduce animation stutters, while overscroll behavior has been refined to prevent unnecessary refresh rate drops that could previously affect smooth scrolling.
The launcher also standardizes the search bar height, creating a cleaner and more consistent appearance across the interface.
Refresh Rate & Display Improvements
A considerable amount of work has gone into SurfaceFlinger and display management. This update improves refresh rate handling by reducing unnecessary switching between refresh rates, allowing the system to remain at lower refresh rates while idle to conserve battery, and ensuring the refresh rate overlay behaves more consistently.
The update also fixes Android’s Always-On Display burn-in protection issue that previously required a SystemUI restart after boot on some devices.
Improved Stability
Several bugs affecting daily usability have been resolved, including:
- PermissionController crashes
- IME (keyboard) becoming stuck
- Multi-profile file access issues
- Problems assigning DAVx as a contacts account
- Circle to Search when using an invisible navigation gesture handle
- Volume dialog layout issues in landscape mode
Together, these fixes provide a more reliable day-to-day experience.
New Customization Options
YAAP adds an option to adjust notification shade opacity, giving users additional control over the appearance of the quick settings panel.
Users who prefer gesture navigation can also make the navigation gesture handle completely invisible while maintaining functionality.
Performance Optimizations
The developers continue refining system performance by:
- Disabling the USAP pool to reduce excessive battery drain experienced by some users.
- Improving refresh rate behavior during overscroll animations.
- Optimizing rendering efficiency through Lindroid improvements.
- Enhancing background application power management.
These changes contribute to smoother animations while helping preserve battery life.
Updated Camera Application
The built-in Aperture Camera has been rebased and updated with additional improvements, including better HDR video color handling for supported devices.
Device-Specific Improvements
For the POCO X3 Pro, this build merges the latest LineageOS Qualcomm SM8150 kernel changes, bringing updated kernel improvements and compatibility fixes from the LineageOS project.
Official Changelog
ROM
- Applied May 2026 security patches
- Fixed volume dialog ringer drawer in landscape
- Corrected tether offload default behavior
- Added coarse location indicator
- Fixed status bar burn-in protection
- Disabled USAP pool to reduce battery drain
- Launcher performance optimizations
- Improved adaptive refresh rate behavior
- Fixed PermissionController crashes
- Fixed Tiny UDP Cannon VPN bypass
- Fixed keyboard getting stuck
- Fixed DAVx contacts integration
- Fixed multi-profile file access
- Standardized launcher search bar height
- Added invisible navigation gesture handle option
- Added Material Design 3 Files app
- Improved Lindroid rendering behavior
- Added notification shade opacity option
- Additional refresh rate optimizations
- Fixed Circle to Search with hidden gesture handle
- Updated Aperture Camera
- Improved power mode support
- Updated OmniJaws Weather
- GApps build now uses Credential Manager by default
- Miscellaneous fixes and optimizations
Device
- Merged latest LineageOS Qualcomm SM8150 kernel changes
Installation Notes
Before updating, keep the following in mind:
- Both Vanilla and GApps editions are available.
- The Vanilla build includes MicroG by default.
- The ROM uses the EROFS file system.
- SELinux is set to Enforcing.
- Dirty flashing or OTA updating from the previous YAAP release is supported.
- The developer strongly recommends using YAAP Recovery when formatting data to avoid installation issues.
- Always create a complete backup before flashing.
Important Links
Official Support Group:
https://t.me/grepfox_chat
Credits
Special thanks to everyone who contributed to this release:
- grepfox – Official maintainer
- YAAP Team
- LineageOS Project – Kernel improvements and upstream contributions
- All open-source contributors
Final Thoughts
The latest YAAP Android 16 QPR2 update is less about introducing flashy new features and more about polishing nearly every aspect of the operating system. From smoother animations and improved adaptive refresh rate behavior to important bug fixes, updated security patches, and kernel improvements, this release focuses on delivering a more refined and reliable experience for POCO X3 Pro users.
Whether you use your device for everyday productivity, media consumption, or gaming, these under-the-hood improvements should result in a smoother and more responsive system. If you’re already running YAAP, this update is highly recommended thanks to its extensive stability improvements, display optimizations, and ongoing Android 16 enhancements. Before upgrading, be sure to back up your data and use the recommended YAAP Recovery for the cleanest installation experience.
