The Xiaomi 14 Ultra, codename aurora, is a premium flagship with a 6.73‑inch 2K 120 Hz LTPO AMOLED display, Snapdragon 8 Gen 3, Leica quad cameras and a 5000–5300 mAh battery with 90 W charging.
Owners have reported camera‑related overheating during 4K/8K recording, warm temperatures in sunlight and higher battery drain on some HyperOS builds, together with typical flagship‑class background power usage.
The latest HyperOS 3.0.4.0.WNACNXM Android 16 ROM for China, plus HyperOS 2.0.207.0/208.0 Android 15 ROMs for global regions and the Xiaomi.eu AURORA 3.0.4.0 custom ROM, deliver updated security patches and deep performance, memory and graphics optimizations designed to smooth animations, improve efficiency and address earlier stability and battery concerns.
Xiaomi 14 Ultra Firmware Details
| Device name | Xiaomi 14 Ultra |
|---|---|
| Codename | aurora |
| Model identifiers | Includes 24031PN0DC (China), 24031PN0DG (Global), and regional 14 Ultra variants. |
| Chipset / GPU | Qualcomm Snapdragon 8 Gen 3 (SM8650) with Adreno 750 GPU. |
| Display | 6.73‑inch LTPO AMOLED, 1440×3200, up to 120 Hz, 3000 nits peak brightness. |
| RAM / storage | Up to 16 GB LPDDR5X RAM and 1 TB UFS 4.0 storage. |
| Battery / charging | 5000–5300 mAh battery, 90 W wired and 80 W wireless charging, plus 10 W reverse wireless. |
| Android / HyperOS | HyperOS 2.0 (Android 15) for OS2.0.20x builds; HyperOS 3.0.4.0 (Android 16) for WNACNXM. |
| Firmware versions in this post | OS3.0.4.0.WNACNXM CN; OS2.0.207.0.VNAMIXM Global; OS2.0.208.0.VNAEUXM EEA; OS2.0.205.0.VNATWXM/VNATRXM/VNARUXM/VNAINXM TW/TR/RU/IN; Xiaomi.eu_AURORA_OS3.0.4.0.WNACNXM_16. |
| Key HyperOS 3.0.4.0 changes | Faster basic experience, refined compiler settings, better memory reclaim and new rendering pipeline that reduces GPU load and improves battery efficiency, especially for video and animations. |
| Typical user issues targeted | Reports of camera overheating during long 4K recording, general heat in warm climates and HyperOS‑wide battery drain on older builds. |
| File types here | Official HyperOS fastboot images (.tgz) and Xiaomi.eu custom recovery/fastboot ZIP. |
| Flashing tools | Mi Flash Tool or fastboot scripts for.tgz; custom recovery / Xiaomi.eu method for the AURORA OS3.0.4.0 ZIP. |
Download Official Stock Firmware for Xiaomi 14 Ultra (aurora)
Below are the latest HyperOS fastboot packages for every major aurora region plus the Xiaomi.eu AURORA HyperOS 3.0 custom ROM, collected from Xiaomi’s bigota/hugeota servers and well‑known firmware archives.
| Filename | File size | Build date | Build / Android | Region / target | Flashing type | Download |
|---|---|---|---|---|---|---|
| aurora_images_OS3.0.4.0.WNACNXM_20251111.0000.00_16.0_cn_799bf68ee4.tgz | 9.16 GB | 2025‑11‑11 | OS3.0.4.0.WNACNXM · Android 16 | Xiaomi 14 Ultra China (CN) – latest HyperOS 3.0 fastboot. | Official fastboot ROM (.tgz) | Download OS3.0.4.0 CN (Xiaomi server) |
| aurora_global_images_OS2.0.207.0.VNAMIXM_20251031.0000.00_15.0_global_762521ba80.tgz | 8.65 GB | 2025‑10‑31 | OS2.0.207.0.VNAMIXM · Android 15 | Xiaomi 14 Ultra Global (MI). | Official fastboot ROM (.tgz) | Download OS2.0.207.0 Global (Xiaomi server) |
| aurora_eea_global_images_OS2.0.208.0.VNAEUXM_20251105.0000.00_15.0_eea_75d372750f.tgz | 8.02 GB | 2025‑11‑05 | OS2.0.208.0.VNAEUXM · Android 15 | Xiaomi 14 Ultra EEA (EU). | Official fastboot ROM (.tgz) | Download OS2.0.208.0 EEA (Xiaomi server) |
| aurora_tw_global_images_OS2.0.205.0.VNATWXM_20251105.0000.00_15.0_tw_e1284956c1.tgz | 7.38 GB | 2025‑11‑05 | OS2.0.205.0.VNATWXM · Android 15 | Xiaomi 14 Ultra Taiwan (TW). | Official fastboot ROM (.tgz) | Download OS2.0.205.0 TW (Xiaomi server) |
| aurora_tr_global_images_OS2.0.205.0.VNATRXM_20251106.0000.00_15.0_tr_577d1259cf.tgz | 8.00 GB | 2025‑11‑06 | OS2.0.205.0.VNATRXM · Android 15 | Xiaomi 14 Ultra Turkey (TR). | Official fastboot ROM (.tgz) | Download OS2.0.205.0 TR (Xiaomi server) |
| aurora_ru_global_images_OS2.0.205.0.VNARUXM_20251105.0000.00_15.0_ru_d968df022f.tgz | 8.64 GB | 2025‑11‑05 | OS2.0.205.0.VNARUXM · Android 15 | Xiaomi 14 Ultra Russia (RU). | Official fastboot ROM (.tgz) | Download OS2.0.205.0 RU (Xiaomi server) |
| aurora_in_global_images_OS2.0.205.0.VNAINXM_20251105.0000.00_15.0_in_12fe767c06.tgz | 7.00 GB | 2025‑11‑05 | OS2.0.205.0.VNAINXM · Android 15 | Xiaomi 14 Ultra India (IN). | Official fastboot ROM (.tgz) | Download OS2.0.205.0 IN (Xiaomi server) |
| xiaomi.eu_AURORA_OS3.0.4.0.WNACNXM_16.zip | 6.98 GB | based on 2025‑11 CN build | OS3.0.4.0.WNACNXM · Android 16 | Xiaomi.eu custom ROM for Xiaomi 14 Ultra (aurora), debloated multi‑language. | Custom recovery/fastboot ZIP | Download Xiaomi.eu AURORA 3.0.4.0 (SourceForge) |
Flashing Requirements
- Confirm codename: In fastboot mode, run fastboot getvar product and make sure it returns aurora before using any ROM from this page.
- Match your region: Use WNACNXM for China, VNAMIXM for Global, VNAEUXM for EEA, VNAINXM for India, VNARUXM for RU, VNATRXM for TR and VNATWXM for TW to keep bands and OTAs correct.
- Unlocked bootloader: All fastboot.tgz packages and the Xiaomi.eu ZIP require an unlocked bootloader; follow Xiaomi’s official unlock process first.
- PC, drivers, tools: Use a Windows PC with Xiaomi USB drivers, Xiaomi Mi Flash Tool or fastboot, a quality USB‑C cable and at least 20 GB of free disk space.
- Backup and charge: Back up apps and media, and charge above 60%, because “clean all” fastboot flashes and some custom ROM installs will fully wipe internal storage.
How to Flash the Firmware Flash File
Official aurora fastboot images are intended for Mi Flash Tool or Xiaomi’s flash_all*.bat scripts, while Xiaomi.eu AURORA OS3.0.4.0 is flashed via custom recovery or its own fastboot package, depending on the release.
- Download and extract stock ROM: Download the correct aurora_…_images_OS2.0.20x/OS3.0.4.0… file and extract it until you see the images folder and flash_all*.bat scripts.
- Prepare Mi Flash: Install Xiaomi drivers, open the Xiaomi Mi Flash Tool (guide) and select the extracted ROM folder.
- Enter fastboot mode: Power off the 14 Ultra, hold Volume Down + Power to enter fastboot, connect to the PC and click “Refresh” in Mi Flash to confirm detection.
- Flash with “clean all”: Choose the clean all option, press “Flash” and wait until Mi Flash reports success; do not unplug the cable or turn off the phone mid‑flash.
- First boot and testing: Reboot into HyperOS; the first boot can take several minutes while apps are optimized, then monitor camera thermals, standby drain and overall smoothness over a few charge cycles.
If you prefer command‑line flashing, follow this flash_all.bat fastboot script guide, which explains how to use Xiaomi’s included scripts safely on Windows. Xiaomi.eu users should follow the official Xiaomi.eu instructions for AURORA, which typically involve flashing the ZIP from a custom recovery rather than Mi Flash.
Frequently Asked Questions (FAQs)
What does HyperOS 3.0.4.0 bring compared with HyperOS 2 on Xiaomi 14 Ultra?
HyperOS 3.0.4.0 for aurora introduces Android 16, updated security patches and extensive optimizations to the compiler, memory handling, graphics pipeline and animations for a smoother, more efficient system. It also improves short‑video playback efficiency and system scheduling, which can help reduce heat and power use during media and social‑app usage.
Will these ROMs fix camera overheating and battery drain?
Some Xiaomi 14 Ultra owners report overheating in long 4K recording sessions and faster drain on earlier HyperOS builds. HyperOS 3’s efficiency and graphics changes plus a clean flash can improve thermals and standby time, though sustained 4K/8K recording will still push the hardware heavily.
Can I cross‑flash the China Android 16 ROM onto a global Xiaomi 14 Ultra?
With an unlocked bootloader, cross‑flashing WNACNXM to a global aurora is technically possible but changes language defaults, pre‑installed apps and OTA channels. For most users, staying on the original region code (VNAMIXM, VNAEUXM, VNAINXM, etc.) is safer for modem and update compatibility.
Is the Xiaomi.eu AURORA 3.0.4.0 ROM stable and safe?
Xiaomi.eu AURORA builds are popular de‑bloated ROMs based on the Chinese firmware with extra languages, and many users report good performance. However, they are unofficial, require an unlocked bootloader and custom recovery, and should be installed only if you accept the added risk and follow Xiaomi.eu’s instructions carefully.
