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Xiaomi 15
HyperOS 3.0StableChina

Xiaomi 15 HyperOS 3.0 OS3.0.307.0.WOCCNXM

Stable firmware for the China Xiaomi 15 (dada), released September 3, 2026.

Download OS3.0.307.0.WOCCNXM

Recovery ROM (OTA .zip) · 8.5 GB Install from the phone’s updater app — keeps your data.
MD5: 135abb5f2885fe989d9a7a49dbbc3033
Download
Fastboot ROM (.tgz) · 12.0 GB Full image for Mi Flash Tool — clean install, unbrick or downgrade.
MD5: bb312a5b62436702cd0ec2f1898186e3
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 15
Codename
dada
Region
China
Version
OS3.0.307.0.WOCCNXM
OS
HyperOS 3.0
Android
16.0
Branch
Stable
Released
Sep 3, 2026
Package
Recovery 8.5 GB / Fastboot 12.0 GB

How to install OS3.0.307.0.WOCCNXM

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 15.
  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 15 (China) builds

Device page →
DeviceVersionAndroidBranchReleased
Xiaomi 15China · dadaOS2.0.104.0.VOCCNXM
HyperOS 2.0Stable Beta
15.0Stable Beta

Xiaomi 15 firmware for other regions

Frequently asked questions

Is OS3.0.307.0.WOCCNXM an official Xiaomi 15 update?
Yes. OS3.0.307.0.WOCCNXM is an official Stable HyperOS 3.0 build for the Xiaomi 15 (China), released by Xiaomi on September 3, 2026. The download links point directly to Xiaomi’s update servers.
Which Android version does OS3.0.307.0.WOCCNXM use?
This firmware is based on Android 16.0.
Will installing OS3.0.307.0.WOCCNXM 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 (dada). Cross-region flashing requires an unlocked bootloader and can cause problems.