Try “Xiaomi 14”, “marble”, “Redmi Note 13” or “OS2.0”
Mi CC 9
MIUI 12.5StableChina

Mi CC 9 MIUI 12.5 V12.5.5.0.RFCCNXM

Stable firmware for the China Mi CC 9 (pyxis), released November 11, 2021.

Download V12.5.5.0.RFCCNXM

Recovery ROM (OTA .zip) · 2.6 GB Install from the phone’s updater app — keeps your data.
MD5: c3b5b178ff252d0c97627072f70dd7e4
Download
Fastboot ROM (.tgz) · 4.0 GB Full image for Mi Flash Tool — clean install, unbrick or downgrade.
MD5: 571cf27a519a0746681fa5a344b33520
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
Mi CC 9
Codename
pyxis
Region
China
Version
V12.5.5.0.RFCCNXM
OS
MIUI 12.5
Android
11.0
Branch
Stable
Released
Nov 11, 2021
Package
Recovery 2.6 GB / Fastboot 4.0 GB

How to install V12.5.5.0.RFCCNXM

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 Mi CC 9.
  3. Open Settings → About phone and tap the MIUI 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 Mi CC 9 (China) builds

Device page →
DeviceVersionAndroidBranchReleased
Mi CC 9China · pyxis21.11.24
MIUI BetaWeekly
11.0Weekly
Mi CC 9China · pyxisV12.5.1.0.RFCCNXM
MIUI 12.5Stable Beta
11.0Stable Beta

Mi CC 9 firmware for other regions

Frequently asked questions

Is V12.5.5.0.RFCCNXM an official Mi CC 9 update?
Yes. V12.5.5.0.RFCCNXM is an official Stable MIUI 12.5 build for the Mi CC 9 (China), released by Xiaomi on November 11, 2021. The download links point directly to Xiaomi’s update servers.
Which Android version does V12.5.5.0.RFCCNXM use?
This firmware is based on Android 11.0.
Will installing V12.5.5.0.RFCCNXM 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 (pyxis). Cross-region flashing requires an unlocked bootloader and can cause problems.