Try “Xiaomi 14”, “marble”, “Redmi Note 13” or “OS2.0”
Redmi 15R 5G
HyperOS 3.0StableChina

Redmi 15R 5G HyperOS 3.0 OS3.0.304.0.WOUCNXM

Stable firmware for the China Redmi 15R 5G (spring), released October 23, 2026.

Download OS3.0.304.0.WOUCNXM

Recovery ROM (OTA .zip) · 5.7 GB Install from the phone’s updater app — keeps your data.
MD5: 05d743fe1849370e871296d5e8d0dbef
Download
Fastboot ROM (.tgz) · 8.0 GB Full image for Mi Flash Tool — clean install, unbrick or downgrade.
MD5: e9cfdbaaa6808c52fefe3fddb29ab167
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
Redmi 15R 5G
Codename
spring
Region
China
Version
OS3.0.304.0.WOUCNXM
OS
HyperOS 3.0
Android
16.0
Branch
Stable
Released
Oct 23, 2026
Package
Recovery 5.7 GB / Fastboot 8.0 GB

How to install OS3.0.304.0.WOUCNXM

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 Redmi 15R 5G.
  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.

Redmi 15R 5G firmware for other regions

Frequently asked questions

Is OS3.0.304.0.WOUCNXM an official Redmi 15R 5G update?
Yes. OS3.0.304.0.WOUCNXM is an official Stable HyperOS 3.0 build for the Redmi 15R 5G (China), released by Xiaomi on October 23, 2026. The download links point directly to Xiaomi’s update servers.
Which Android version does OS3.0.304.0.WOUCNXM use?
This firmware is based on Android 16.0.
Will installing OS3.0.304.0.WOUCNXM 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 (spring). Cross-region flashing requires an unlocked bootloader and can cause problems.