Try “Xiaomi 14”, “marble”, “Redmi Note 13” or “OS2.0”
Redmi Note 12 Pro / Pro+ / Discovery 5G
HyperOS 2.0StableChina

Redmi Note 12 Pro / Pro+ / Discovery 5G HyperOS 2.0 OS2.0.20.0.UMOCNXM

Stable firmware for the China Redmi Note 12 Pro / Pro+ / Discovery 5G (ruby), released May 19, 2026.

Download OS2.0.20.0.UMOCNXM

Recovery ROM (OTA .zip) · 5.8 GB Install from the phone’s updater app — keeps your data.
MD5: 49a94bc079c85f28c9878a111ec7ed7d
Download
Fastboot ROM (.tgz) · 7.1 GB Full image for Mi Flash Tool — clean install, unbrick or downgrade.
MD5: aa512c5ffd66518728fd92077efb681d
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 Note 12 Pro / Pro+ / Discovery 5G
Codename
ruby
Region
China
Version
OS2.0.20.0.UMOCNXM
OS
HyperOS 2.0
Android
14.0
Branch
Stable
Released
May 19, 2026
Package
Recovery 5.8 GB / Fastboot 7.1 GB

How to install OS2.0.20.0.UMOCNXM

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 Note 12 Pro / Pro+ / Discovery 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.

Other Redmi Note 12 Pro / Pro+ / Discovery 5G (China) builds

Device page →
DeviceVersionAndroidBranchReleased
Redmi Note 12 Pro / Pro+ / Discovery 5GChina · rubyV14.0.1.0.TMOCNXM
MIUI 14Stable Beta
13.0Stable Beta

Redmi Note 12 Pro / Pro+ / Discovery 5G firmware for other regions

Frequently asked questions

Is OS2.0.20.0.UMOCNXM an official Redmi Note 12 Pro / Pro+ / Discovery 5G update?
Yes. OS2.0.20.0.UMOCNXM is an official Stable HyperOS 2.0 build for the Redmi Note 12 Pro / Pro+ / Discovery 5G (China), released by Xiaomi on May 19, 2026. The download links point directly to Xiaomi’s update servers.
Which Android version does OS2.0.20.0.UMOCNXM use?
This firmware is based on Android 14.0.
Will installing OS2.0.20.0.UMOCNXM 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 (ruby). Cross-region flashing requires an unlocked bootloader and can cause problems.