OS3.0.3.0.VLTCNXM
Xiaomi 12S
mayfly
Stable Android 15.0 China
Showing OS3.0.3.0.VLTCNXM for mayfly only. Other versions? Browse all Mayfly updates →
Version
OS3.0.3.0.VLTCNXM
Android
Android 15.0
Region
China
File Size
6.3 GB

Compatible Device

Xiaomi 12S
Xiaomi 12S
Xiaomi 12S Android smartphone. Announced Jul 2022. Features 6.28″ display, Snapdragon 8+ Gen 1 chipset, 4500 mAh battery, 512 GB storage, 12 GB RAM, Corning Gorilla Glass Victus.
View Device

Firmware Packages

2 available
Xiaomi 12S
Recovery
Codenamemayfly
BranchStable
VersionOS3.0.3.0.VLTCNXM
AndroidAndroid 15.0
RegionChina
ReleasedMar 23, 2026
Size6.3 GB
MD5
Download Recovery
Xiaomi 12S
Fastboot
Codenamemayfly
BranchStable
VersionOS3.0.3.0.VLTCNXM
AndroidAndroid 15.0
RegionChina
ReleasedMar 12, 2026
Size7.6 GB
MD5
Download Fastboot

Frequently Asked Questions

Install using the Recovery method. Ensure you have the required tools, back up your data, and follow the official Xiaomi flashing guide for your region to avoid issues.
MIUI is Xiaomi's custom Android skin, now evolving into HyperOS. It provides a refined interface, deep system customization, performance optimizations, and integrated Xiaomi services.
Fastboot flashing rewrites system partitions directly via PC — useful for clean installs or unbricking. Recovery flashing installs the update from within the phone's recovery mode, similar to an OTA update.
All firmware listed here is sourced directly from Xiaomi's official update servers. Always verify the MD5 hash before flashing to confirm file integrity.
MIUI adds features like Dual Apps, Second Space, a rich theme engine, MIUI Security, and deep system-level battery controls — all unavailable in stock Android.