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Xiaomi 17 Pro Max
HyperOS 4.0StableChina

Xiaomi 17 Pro Max HyperOS 4.0 OS4.0.4.0.XPBCNXM

Stable firmware for the China Xiaomi 17 Pro Max (popsicle), released October 17, 2026.

Download OS4.0.4.0.XPBCNXM

Recovery ROM (OTA .zip) · 9.1 GB Install from the phone’s updater app — keeps your data.
MD5: 7d13a10bbcfc35610fd6d8463f85effd
Download
Fastboot ROM (.tgz) · 12.5 GB Full image for Mi Flash Tool — clean install, unbrick or downgrade.
MD5: a7110cc2fb1be616a9a5baa3e5decf0e
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 17 Pro Max
Codename
popsicle
Region
China
Version
OS4.0.4.0.XPBCNXM
OS
HyperOS 4.0
Android
17.0
Branch
Stable
Released
Oct 17, 2026
Package
Recovery 9.1 GB / Fastboot 12.5 GB

How to install OS4.0.4.0.XPBCNXM

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 17 Pro Max.
  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 17 Pro Max (China) builds

Device page →
DeviceVersionAndroidBranchReleased
Xiaomi 17 Pro MaxChina · popsicleOS3.0.3.0.WPBCNXM
HyperOS 3.0Stable Beta
16.0Stable Beta

Frequently asked questions

Is OS4.0.4.0.XPBCNXM an official Xiaomi 17 Pro Max update?
Yes. OS4.0.4.0.XPBCNXM is an official Stable HyperOS 4.0 build for the Xiaomi 17 Pro Max (China), released by Xiaomi on October 17, 2026. The download links point directly to Xiaomi’s update servers.
Which Android version does OS4.0.4.0.XPBCNXM use?
This firmware is based on Android 17.0.
Will installing OS4.0.4.0.XPBCNXM 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 (popsicle). Cross-region flashing requires an unlocked bootloader and can cause problems.