Try “Xiaomi 14”, “marble”, “Redmi Note 13” or “OS2.0”
Redmi 12C / POCO C55
HyperOS 1.0StableTaiwan

Redmi 12C / POCO C55 HyperOS 1.0 OS1.0.9.0.UCVTWXM

Stable firmware for the Taiwan Redmi 12C / POCO C55 (earth_tw_global), released July 2, 2025.

Download OS1.0.9.0.UCVTWXM

Recovery ROM (OTA .zip) · 4.1 GB Install from the phone’s updater app — keeps your data.
MD5: 229f47204a311c68259ebc3d3aaa9eac
Download
Fastboot ROM (.tgz) · 5.6 GB Full image for Mi Flash Tool — clean install, unbrick or downgrade.
MD5: 051ff6f1fe98e849eaf53d15e927697e
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 12C / POCO C55
Codename
earth_tw_global
Region
Taiwan
Version
OS1.0.9.0.UCVTWXM
OS
HyperOS 1.0
Android
14.0
Branch
Stable
Released
Jul 2, 2025
Package
Recovery 4.1 GB / Fastboot 5.6 GB

How to install OS1.0.9.0.UCVTWXM

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 12C / POCO C55.
  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 12C / POCO C55 (Taiwan) builds

Device page →
DeviceVersionAndroidBranchReleased
Redmi 12C / POCO C55Taiwan · earth_tw_globalV14.0.1.0.TCVTWXM
MIUI 14Stable Beta
13.0Stable Beta

Redmi 12C / POCO C55 firmware for other regions

Frequently asked questions

Is OS1.0.9.0.UCVTWXM an official Redmi 12C / POCO C55 update?
Yes. OS1.0.9.0.UCVTWXM is an official Stable HyperOS 1.0 build for the Redmi 12C / POCO C55 (Taiwan), released by Xiaomi on July 2, 2025. The download links point directly to Xiaomi’s update servers.
Which Android version does OS1.0.9.0.UCVTWXM use?
This firmware is based on Android 14.0.
Will installing OS1.0.9.0.UCVTWXM 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 (Taiwan) and codename (earth_tw_global). Cross-region flashing requires an unlocked bootloader and can cause problems.