Download Xiaomi 18 Pro Max CN HyperOS firmware — madrid · OS4.0.27.0.XEOCNXM
Download Xiaomi 18 Pro Max CN HyperOS firmware: codename madrid, latest build OS4.0.27.0.XEOCNXM (Android 17.0 · 12.9 GB · 19.10.2026). This page lists the official recovery package for CN, download links, and release history.
Latest official HyperOS firmware for Xiaomi 18 Pro Max, CN region: direct download link and install instructions.
Download firmware Xiaomi 18 Pro Max CN OS4.0.27.0.XEOCNXM
Installation
- Download the recovery package from the link above.
- Open System Update on the device.
- Menu ⋮ → Choose update package and select the downloaded file.
- Wait until install finishes — the device will reboot on its own.
- Do not power off or interrupt the process while flashing.
Source & authenticity
Files are indexed from public HyperOS / Xiaomi builds and community mirrors. Otree.pro is not affiliated with Xiaomi; the original release and device settings remain authoritative.
CN and Global/EEA/RU builds use different packages and services. Install the region that matches your device firmware, or you may hit signature conflicts.
Before flashing, back up important data and make sure the device is sufficiently charged.
History
| Version | Date | Android | Size |
|---|---|---|---|
| OS4.0.27.0.XEOCNXM | 19.10.2026 | 17.0 | 12.9 GB |
| OS4.0.24.0.XEOCNXM | 09.10.2026 | 17.0 | 12.9 GB |
| OS4.0.20.0.XEOCNXM | 05.10.2026 | 17.0 | 12.9 GB |
| OS4.0.17.0.XEOCNXM | 01.10.2026 | 17.0 | 12.9 GB |
| OS4.0.11.0.XEOCNXM | 25.09.2026 | 17.0 | 12.9 GB |
| OS4.0.6.0.XEOCNXM | 23.09.2026 | 17.0 | 12.9 GB |
| OS4.0.9.0.XEOCNXM | 17.0 | 12G | |
| OS4.0.24.0.XEOCNXM | 17.0 | 12G | |
| OS4.0.20.0.XEOCNXM | 17.0 | 12G | |
| OS4.0.17.0.XEOCNXM | 17.0 | 12G | |
| OS4.0.15.0.XEOCNXM | 17.0 | 12G | |
| OS4.0.11.0.XEOCNXM | 17.0 | 12G |
