- Aug 3, 2025
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If you’re running the Xiaomi 17 Ultra (codename: nezha) on the China branch, this official HyperOS 3 fastboot package can help you reinstall the full system when you’re dealing with serious software problems (bootloop, broken OTA updates, persistent lag, or random system instability).
It’s also a good “clean start” option after big platform jumps like Android 16, especially since HyperOS 3 Android 16 rollouts have been associated (in general) with bugs such as alarm freeze after ringing and mobile data issues on some devices/versions.
However, wider HyperOS 3 (Android 16) rollouts have been associated with issues like alarm freezing after it rings and mobile data problems on some versions/devices, which is why many users keep a fastboot ROM as a recovery option.
For the complete step-by-step guide (with screenshots and troubleshooting), follow: How to flash Xiaomi firmware with Xiaomi Mi Flash Tool.
It’s also a good “clean start” option after big platform jumps like Android 16, especially since HyperOS 3 Android 16 rollouts have been associated (in general) with bugs such as alarm freeze after ringing and mobile data issues on some devices/versions.
Xiaomi 17 Ultra Firmware Details
| Device | Xiaomi 17 Ultra (China) |
| Codename | nezha |
| Firmware version | OS3.0.10.0.WPACNXM |
| Android version | Android 16.0 |
| ROM type / purpose | Official Xiaomi Fastboot ROM (.tgz) — full firmware reinstall/repair via PC flashing. |
| Region | China (CNXM / WPACNXM) |
| Build date | 2026-01-11 (from filename) |
| Security patch (verifiable) | December 2025 security patch (as listed in a public rollout changelog post for this build). |
| Flashing tool | Xiaomi Mi Flash Tool (Fastboot flashing workflow). |
User-Reported Problems (Context)
No device-specific “Xiaomi 17 Ultra (nezha)” complaint thread was found in the provided sources for this exact fastboot build, so this section is kept minimal to avoid guessing.However, wider HyperOS 3 (Android 16) rollouts have been associated with issues like alarm freezing after it rings and mobile data problems on some versions/devices, which is why many users keep a fastboot ROM as a recovery option.
Changelog & Fixed Issues (Verified Only)
The following items are taken from a public rollout post for HyperOS OS3.0.10.0.WPACNXM:- Fix: In some apps, setting them as the default app didn’t take effect.
- Fix: DND mode occasionally turned off automatically in certain scenarios.
- Optimization: Standby power consumption in some scenarios.
- Optimization: System stability.
- Fix: Accessibility features stopped working in some cases.
- Fix: Permission issues with Find device in certain situations.
- System: Updated the security patch to December 2025; increased system security.
Download Official Firmware for Xiaomi 17 Ultra (NEZHA)
Make sure your phone is Xiaomi 17 Ultra and your target branch is WPACNXM (China) before downloading.- Filename: nezha_images_OS3.0.10.0.WPACNXM_20260111.0000.00_16.0_cn_6c8ff5bca5.tgz
- Size: 11.65GB (as provided) / ~12.5GB shown on ROM listings.
- Build Date: 2026-01-11 (from filename)
- Build Version: OS3.0.10.0.WPACNXM
- Android Version: 16.0
- Region: China (CN)
- File Type: Fastboot ROM (.tgz)
- Recommended Flashing Tool: Xiaomi Mi Flash Tool
- Download Link: BigOTA (Xiaomi server)
The Requirements
- A Windows PC (recommended) and a stable USB data cable.
- Xiaomi USB drivers + Android Platform Tools (Fastboot) installed.
- Xiaomi Mi Flash Tool for flashing the.tgz fastboot ROM.
- Unlocked bootloader (commonly required for fastboot flashing on Xiaomi devices) or an appropriate service method if the device is locked.
- A full backup (a clean flash can wipe data).
How to Flash the Firmware (Quick Steps)
Method: Xiaomi Mi Flash Tool (Fastboot ROM.TGZ)
- Download and extract: nezha_images_OS3.0.10.0.WPACNXM_20260111.0000.00_16.0_cn_6c8ff5bca5.tgz.
- Boot your Xiaomi 17 Ultra (nezha) into Fastboot mode (Power + Volume Down).
- Open Xiaomi Mi Flash Tool and load the extracted firmware folder.
- Choose the correct flash option for your situation (a “clean all” style option is typically used for a clean reinstall).
- Flash, wait for success, then reboot (first boot can take longer after a clean flash).
For the complete step-by-step guide (with screenshots and troubleshooting), follow: How to flash Xiaomi firmware with Xiaomi Mi Flash Tool.
Frequently Asked Questions (FAQs)
Nezha is listed as the codename for the Xiaomi 17 Ultra.
WPACNXM is a China ROM branch, and China ROM listings commonly note “No Google Services” for CN builds.
If Google apps are required, consider whether your device/region supports an official Global build or a safe alternative for your setup (bootloader status matters).
If Google apps are required, consider whether your device/region supports an official Global build or a safe alternative for your setup (bootloader status matters).
This file is a Fastboot ROM package in.tgz format (full firmware meant for PC flashing).
A clean fastboot flash commonly wipes user data, so a full backup is recommended before flashing.
A public rollout changelog for OS3.0.10.0.WPACNXM mentions fixes for default-app setting, DND turning off, accessibility issues, Find device permission issues, plus optimizations for standby power and system stability, and a December 2025 security patch update.
Mi ROM listings show both recovery and fastboot packages for OS3.0.10.0.WPACNXM, and the fastboot package is generally the deeper “full reinstall” option.
If the phone cannot boot normally but still enters Fastboot mode, fastboot flashing is commonly used as the recovery path.
If the phone cannot boot normally but still enters Fastboot mode, fastboot flashing is commonly used as the recovery path.
Mi ROM listings for Xiaomi 17 Ultra (nezha) show OS3.0.10.0.WPACNXM as China Stable (HyperOS 3.0 / Android 16) and include a direct BigOTA link to the fastboot.tgz.
