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Xiaomi 12S Pro
HyperOS 3.0StableChina

Xiaomi 12S Pro HyperOS 3.0 OS3.0.4.0.VLECNXM

Stable firmware for the China Xiaomi 12S Pro (unicorn), released June 25, 2026.

Download OS3.0.4.0.VLECNXM

Recovery ROM (OTA .zip) · 6.4 GB Install from the phone’s updater app — keeps your data.
MD5: 9be4b807591b30510d6c577baa06b5a5
Download
Fastboot ROM (.tgz) · 8.0 GB Full image for Mi Flash Tool — clean install, unbrick or downgrade.
MD5: 17629c3b9c1287f511d2666419849bbb
Download

Files are served from Xiaomi’s official servers. Compare the MD5 checksum after downloading to make sure the file is complete and untouched.

Firmware details

Device
Xiaomi 12S Pro
Codename
unicorn
Region
China
Version
OS3.0.4.0.VLECNXM
OS
HyperOS 3.0
Android
15.0
Branch
Stable
Released
Jun 25, 2026
Package
Recovery 6.4 GB / Fastboot 8.0 GB

How to install OS3.0.4.0.VLECNXM

Recovery ROM (recommended, keeps data)

  1. Back up your important data and charge the phone to at least 50%.
  2. Download the Recovery ROM above on your Xiaomi 12S Pro.
  3. Open Settings → About phone and tap the HyperOS version card.
  4. Tap the ⋮ menu → Choose update package and select the downloaded .zip file.
  5. Wait for verification, then tap Reboot now. The update takes 10–20 minutes.

Fastboot ROM (clean install, needs unlocked bootloader)

  1. Make sure the bootloader is unlocked and install Mi Flash Tool plus the Xiaomi USB drivers on a Windows PC.
  2. Download and extract the Fastboot ROM (.tgz) to a short path such as C:\rom.
  3. Power off the phone, hold Volume Down + Power to enter Fastboot mode and connect it via USB.
  4. In Mi Flash Tool select the extracted folder, choose clean all (wipes data) and avoid “clean all and lock” unless you want to relock.
  5. Click Flash and wait until the tool shows success; the phone reboots automatically.

Other Xiaomi 12S Pro (China) builds

Device page →
DeviceVersionAndroidBranchReleased
Xiaomi 12S ProChina · unicornOS2.0.3.0.VLECNXM
HyperOS 2.0Stable Beta
15.0Stable Beta
Xiaomi 12S ProChina · unicornOS1.0.24.1.8.DEV
HyperOS 1.0Public Beta
14.0Public Beta
Xiaomi 12S ProChina · unicornV14.0.22.12.5.DEV
MIUI 14Public Beta
13.0Public Beta

Frequently asked questions

Is OS3.0.4.0.VLECNXM an official Xiaomi 12S Pro update?
Yes. OS3.0.4.0.VLECNXM is an official Stable HyperOS 3.0 build for the Xiaomi 12S Pro (China), released by Xiaomi on June 25, 2026. The download links point directly to Xiaomi’s update servers.
Which Android version does OS3.0.4.0.VLECNXM use?
This firmware is based on Android 15.0.
Will installing OS3.0.4.0.VLECNXM erase my data?
Installing the Recovery package through the updater app keeps your apps and data. Flashing the Fastboot package with “clean all” wipes the phone — back up first.
Can I install this on another region’s device?
Only install firmware that matches your device’s region (China) and codename (unicorn). Cross-region flashing requires an unlocked bootloader and can cause problems.