The POCO F3 (Alioth) continues to receive impressive custom ROM support, and the latest addition is HyperOS v2.0.209, an unofficial Android 15 port developed by SiRahan. Built from the Xiaomi 12 Global firmware, this release focuses on delivering a clean, stock HyperOS experience with improved performance, minimal bloatware, and enhanced stability.
Whether you’re looking to refresh your POCO F3 with Android 15 or simply want a smooth daily-driver ROM, HyperOS v2.0.209 brings several notable improvements that make it worth considering.
Screenshots:
HyperOS v2.0.209 Information
- ROM Name: HyperOS v2.0.209
- Android Version: Android 15
- Device: POCO F3 (Alioth)
- ROM Type: Unofficial Port
- Base: Xiaomi 12 Global
- File System: EROFS
- Developer: SiRahan
- Release Date: 29 June 2026
What’s New?
EROFS File System
This ROM uses the Enhanced Read-Only File System (EROFS), which is designed to improve read performance while reducing storage overhead. Many modern HyperOS ports adopt EROFS because it can contribute to quicker app launches and a more responsive system.
Performance Kernel Included
HyperOS v2.0.209 ships with a Performance Kernel as the default kernel. It is tuned to provide faster responsiveness, smoother animations, and reliable daily performance without requiring additional configuration.
TWRP Recovery by Default
The ROM comes with TWRP Recovery pre-installed, making future updates, backups, and custom modifications much easier for users who frequently flash ROMs or Magisk modules.
Leica Camera 6.1
Photography enthusiasts will appreciate the inclusion of Leica Camera 6.1, bringing Xiaomi’s latest Leica-inspired camera interface and updated camera features to the POCO F3.
Heavily Debloated
One of the highlights of this release is its heavily debloated system. Many unnecessary applications and background services have been removed, resulting in more available storage, reduced RAM usage, and an overall cleaner user experience.
Xiaomi 12 Global Base
Using the Xiaomi 12 Global firmware as its foundation allows this ROM to bring newer HyperOS features and optimizations while maintaining compatibility with the POCO F3 hardware.
Performance
HyperOS v2.0.209 is designed to provide a stock Xiaomi experience with improved speed and efficiency. The combination of the EROFS file system, Performance Kernel, and aggressive debloating helps create a ROM that feels responsive during everyday tasks, multitasking, gaming, and media consumption.
Unlike many experimental Android 15 ports, the developer reports that no major issues were found during testing, making this build suitable for users looking for a stable daily driver.
Official Changelog
- EROFS file system
- Performance Kernel by default
- TWRP Recovery by default
- Leica Camera 6.1
- Heavily debloated system
- Xiaomi 12 Global firmware base
Developer Notes
The developer recommends flashing the Kaorios Toolbox module if you plan to use Kaorios Toolbox features.
For users seeking additional stability, an alternative custom kernel has also been provided through the project’s support group.
Known Bugs
At the time of release, the developer has reported:
- No known bugs.
Although no issues were discovered during testing, users are encouraged to report any bugs they encounter to help improve future updates.
Credits
Special thanks to:
- mr_mishun
- a0017aa for providing the vendor
Their contributions helped make this Android 15 HyperOS port possible.
Final Thoughts
The POCO F3 remains one of the most active devices in the custom ROM community, and HyperOS v2.0.209 is another excellent example of that ongoing development. With Android 15, a Xiaomi 12 Global base, Leica Camera 6.1, a Performance Kernel, and a heavily debloated system, this ROM offers an excellent balance of speed, stability, and stock HyperOS features.
For users looking to enjoy Xiaomi’s latest software experience without upgrading their hardware, HyperOS v2.0.209 is definitely worth trying. As always, make a complete backup before flashing and carefully follow the installation instructions provided by the developer.
