Xiaomi MIX Fold 4, codename goku, is an ultra‑thin inward‑folding flagship with a Snapdragon 8‑class chip, dual AMOLED displays and a large battery that targets power users who want a premium foldable for multitasking, gaming and photography.
Real‑world testing and user feedback point to hot spots around the camera island under sustained load, noticeable performance throttling in long gaming sessions and some UI hiccups or animation lag in earlier HyperOS builds.
The new China HyperOS OS3.0.3.0.WNVCNXM Android 16 fastboot ROM improves memory management, CPU scheduling, graphics rendering and system animations, aiming to keep the MIX Fold 4 cooler, more responsive and more efficient in daily use.
MIX Fold 4 (goku) Firmware Details
| Device name | Xiaomi MIX Fold 4 |
|---|---|
| Codename | goku (China‑only foldable platform) |
| Main model ID | 24072PX77C and related N18 MIX Fold 4 variants |
| Chipset | Qualcomm Snapdragon 8‑series flagship SoC with Adreno GPU and 5G modem |
| Displays | ≈8‑inch LTPO inner OLED plus tall outer OLED, both high‑refresh for smooth scrolling |
| Battery / charging | ≈5,000 mAh dual‑cell battery with fast wired charging (no wireless) |
| Common complaints | Heat build‑up near camera under load, throttling in stress tests, camera quality not always matching rivals and typical HyperOS animation lag for some users. |
| Firmware version | HyperOS 3.0.3.0.WNVCNXM (China stable) |
| Android version | Android 16.0 |
| Build date | 2025‑11‑06 (release rolled out mid‑November 2025) |
| File size | ≈9.13 GB fastboot package |
| Changelog focus | Better RAM allocation, more efficient CPU frequency scheduling, lighter graphics load, smoother animations in many system scenes and optimizations to Gallery, Recorder, Weather and AI features. |
| File type | Official China fastboot ROM (.tgz) with full partitions and flash_all*.bat scripts |
| Flashing tool | Xiaomi Mi Flash Tool or fastboot commands on a PC |
| Bootloader | Bootloader unlock required for fastboot flashing; recovery/OTA packages are used on locked stock systems |
Download Official Firmware for Xiaomi MIX Fold 4 (goku)
This is the official China HyperOS 3 Android 16 fastboot ROM flash file pulled from Xiaomi’s bigota server for MIX Fold 4 (goku). It is designed for users who want to clean‑flash to the latest major update, fix serious software bugs or recover from failed OTA updates while benefiting from Xiaomi’s newest performance, battery and AI improvements.
| Filename | File size | Build date | Build / Android | Region / type | Download |
|---|---|---|---|---|---|
| goku_images_OS3.0.3.0.WNVCNXM_20251106.0000.00_16.0_cn_3b88804d63.tgz | 9.13 GB | 2025‑11‑06 | OS3.0.3.0.WNVCNXM · Android 16 · HyperOS 3 | China · official HyperOS 3 fastboot ROM for MIX Fold 4 (goku) | Download OS3.0.3.0 China (Xiaomi bigota) |
Flashing Requirements
- Confirmed codename goku in fastboot using fastboot getvar product on a PC.
- Unlocked bootloader on the MIX Fold 4; Xiaomi fastboot ROMs cannot be installed on a locked device.
- Windows PC, Xiaomi USB drivers, Xiaomi Mi Flash Tool or fastboot CLI, reliable USB‑C cable and at least 20 GB free disk space.
- Battery level above 60 % to avoid shutdown and to limit additional heat and throttling during the long flashing process.
- Full backup of photos, chats and documents, because clean fastboot flashes will erase user data and internal storage.
How to Flash the Firmware
Fastboot ROM (.tgz) via Xiaomi Mi Flash Tool
- Download goku_images_OS3.0.3.0.WNVCNXM…, then extract it until you see the images folder and flash_all*.bat scripts in the directory.
- Install Xiaomi USB drivers and Xiaomi Mi Flash Tool on your PC, open Mi Flash and point it to the extracted firmware folder.
- Boot the MIX Fold 4 into fastboot mode, connect it to the PC and click “Refresh” in Mi Flash to ensure the device is detected correctly.
- Select the clean all option for a fresh install, click “Flash” and wait without disconnecting the cable until Mi Flash reports success.
- Reboot into HyperOS 3; the first boot may take several minutes while Android 16 optimises apps and applies the new memory and graphics optimisations.
For step‑by‑step tutorials with screenshots and videos, follow these guides: how to flash with Xiaomi Mi Flash Tool, how to use a flash_all.bat fastboot script and how to manually install official OTA updates.
Frequently Asked Questions (FAQs)
What issues can OS3.0.3.0.WNVCNXM fix on MIX Fold 4?
A clean flash of this ROM can repair devices stuck at the boot logo, resolve failed HyperOS updates and clear deep system bugs that cause random freezes or heavy UI lag, giving you a fresh Android 16 base.
Does HyperOS 3 reduce overheating and throttling?
The update improves RAM allocation and CPU scheduling and lowers graphics load, which helps performance efficiency, but reviews still show that MIX Fold 4 can grow hot at the camera area and throttle in long stress tests, so reasonable gaming sessions and good ventilation are still recommended.
Can this China ROM be used on global MIX Fold 4 units?
OS3.0.3.0.WNVCNXM is a China build targeted at Chinese models, and cross‑flashing to global hardware may affect language defaults, Google services and future OTA behaviour, so it is mainly intended for advanced users who know how to revert with the correct regional firmware if needed.
How do I confirm that my MIX Fold 4 is really codename goku?
Boot into fastboot mode, connect the phone to a PC and run fastboot getvar product; MIX Fold 4 units supported by this ROM will return goku, matching Xiaomi firmware databases and codename trackers.
