Redmi Note 12 5G / Note 12R Pro (sunstone) HyperOS 2 Android 14 Fastboot ROMs – China, Global, India, EEA, Taiwan + xiaomi.eu & Custom Recoveries

[Daniel]

The firmware packages you listed are official HyperOS 2 Android 14 Fastboot ROMs for the Redmi Note 12 5G / Redmi Note 12R Pro with codename sunstone across China, Global, India, EEA, and Taiwan regions, plus a xiaomi.eu custom ROM and two custom recoveries (TWRP and OrangeFox). Owners of this device often complain about random lag, heating during long 5G or gaming sessions, and battery drain after some updates, and many advanced users report that a clean flash of the correct HyperOS 2 Fastboot ROM or a switch to a newer stable build can help reduce software-related problems, though it cannot change the underlying hardware limitations.

Important Warning for Redmi Note 12 5G / Note 12R Pro (sunstone)​

• Flash these ROMs only on devices with codename sunstone (Redmi Note 12 5G / Redmi Note 12R Pro); using them on any other Xiaomi/Redmi/POCO model can permanently brick the phone.
• Match the region suffix in your current build (UMQCNXM, UMQMIXM, UMQINXM, UMQEUXM, UMQTWXM) with the suffix in the Fastboot ROM filename; cross-region flashing (for example, CNXM on a MIXM phone) can break OTA updates and may cause network or feature issues.
• Fastboot flashing and installing xiaomi.eu or custom recoveries require an unlocked bootloader and usually erase all user data, so back up photos, chats, and important files before starting.
• The xiaomi.eu_SUNSTONE_OS2.0.6.0.UMQCNXM_14.zip file, TWRP image, and OrangeFox build are community projects, not official Xiaomi software; incorrect use can lead to bootloops or encryption issues.

Redmi Note 12 5G / Note 12R Pro (sunstone) Firmware Details​

Device	Redmi Note 12 5G / Redmi Note 12R Pro
Codename	sunstone
Regions in this article	China (CNXM), Global (MIXM), India (INXM), EEA (EUXM), Taiwan (TWXM).
Chipset	Qualcomm Snapdragon 4 Gen 1 (5G SoC, mid-range).
Display	6.67-inch AMOLED, 120 Hz (varies slightly by sub-variant but the HyperOS pages treat them together).
Main OS lines	MIUI 13/14 (Android 12–13) → HyperOS 1.0 & HyperOS 2.0 (Android 14) for all the ROMs listed here.
HyperOS branch (these files)	HyperOS 2.0 based on Android 14 (OS2.0.x.0.UMQ***M Fastboot builds).
Featured China build	OS2.0.6.0.UMQCNXM – Redmi Note 12 5G / Note 12R Pro China HyperOS 2.0, Android 14, Fastboot.
Featured Global build	OS2.0.5.0.UMQMIXM – Redmi Note 12 5G / Note 12R Pro Global HyperOS 2.0, Android 14, Fastboot.
Flashing tools	Xiaomi Mi Flash Tool for Fastboot ROMs; custom recovery (TWRP/OrangeFox) or fastboot scripts for xiaomi.eu ROM.
Example changelog (OS2.0.6.0.UMQCNXM)	China HyperOS pages show OS2.0.6.0.UMQCNXM updating the security patch to August 2025 and improving overall system security and stability.
Common user complaints	Reports of lag when many apps are open, heat during 5G or extended gaming, and some update-related bugs, for which users often recommend updating to the latest HyperOS 2 Fastboot build or doing a clean system reinstall.

Download Official Firmware for Redmi Note 12 5G / Note 12R Pro (sunstone)​

Here are the official HyperOS 2 Android 14 Fastboot ROMs that match your filenames, plus the xiaomi.eu custom ROM and two custom recoveries. Choose the ROM that matches your region suffix (UMQCNXM, UMQMIXM, UMQINXM, UMQEUXM, UMQTWXM) to keep OTA and region functions consistent.

Spoiler: China – HyperOS 2 Android 14 Fastboot ROM

• Filename: sunstone_images_OS2.0.6.0.UMQCNXM_20250812.0000.00_14.0_cn_29df442157.tgz
• Size: 5.93 GB (your note); HyperOS indexes list about 6.4 GB for the OS2.0.6.0.UMQCNXM Fastboot package.
• Build Date: 2025-08-12 (from filename; ROM lists show August 12, 2025 for this Fastboot build).
• Build Version: OS2.0.6.0.UMQCNXM (China, HyperOS 2.0, Stable).
• Android Version: 14.0.
• Notes: Recommended for Redmi Note 12 5G / Note 12R Pro originally sold with Chinese firmware; used to unbrick or clean-flash the device onto the latest HyperOS 2 China branch.
• Download Link: Xiaomi BigOTA (China Fastboot)

Spoiler: Global (MIXM) – HyperOS 2 Android 14 Fastboot ROM

• Filename: sunstone_global_images_OS2.0.5.0.UMQMIXM_20251020.0000.00_14.0_global_f4ad534bf4.tgz
• Size: 5.92 GB.
• Build Date: 2025-10-20.
• Build Version: OS2.0.5.0.UMQMIXM (Global, HyperOS 2.0, Stable).
• Android Version: 14.0.
• Notes: Official Global Fastboot ROM; firmware sites describe OS2.0.5.0.UMQMIXM as a stable HyperOS 2 release for Redmi Note 12 5G / Note 12R Pro with security and stability improvements over earlier OS2.0.4.0 builds.
• Download Link: Xiaomi BigOTA (Global Fastboot)

Spoiler: India (INXM) – HyperOS 2 Android 14 Fastboot ROM

• Filename: sunstone_in_global_images_OS2.0.6.0.UMQINXM_20250821.0000.00_14.0_in_7941d8a8c6.tgz
• Size: 5.12 GB (your value); HyperOS archive lists about 5.5 GB for this India Fastboot build.
• Build Date: 2025-08-21.
• Build Version: OS2.0.6.0.UMQINXM (India, HyperOS 2.0, Stable).
• Android Version: 14.0.
• Notes: Designed for Indian Redmi Note 12 5G models (INXM); used by users who want to fix bootloops or install the latest HyperOS 2 India firmware from scratch.
• Download Link: Xiaomi BigOTA (India Fastboot)

Spoiler: EEA / Europe (EUXM) – HyperOS 2 Android 14 Fastboot ROM

• Filename: sunstone_eea_global_images_OS2.0.6.0.UMQEUXM_20251020.0000.00_14.0_eea_bb2b064f87.tgz
• Size: 5.67 GB.
• Build Date: 2025-10-20.
• Build Version: OS2.0.6.0.UMQEUXM (EEA, HyperOS 2.0, Stable).
• Android Version: 14.0.
• Notes: EEA firmware for European Redmi Note 12 5G units; HyperOS update catalogs list this as a stable Android 14 build with security patch and stability improvements for EEA markets.
• Download Link: Xiaomi BigOTA (EEA Fastboot)

Spoiler: Taiwan (TWXM) – HyperOS 2 Android 14 Fastboot ROM

• Filename: sunstone_tw_global_images_OS2.0.6.0.UMQTWXM_20250821.0000.00_14.0_tw_f406b328a4.tgz
• Size: 5.25 GB (your note); HyperOS pages show around 5.6 GB for the OS2.0.6.0.UMQTWXM Fastboot file.
• Build Date: 2025-08-21.
• Build Version: OS2.0.6.0.UMQTWXM (Taiwan, HyperOS 2.0, Stable).
• Android Version: 14.0.
• Notes: Taiwan-branch firmware; used by TWXM devices to stay on a local ROM while moving onto HyperOS 2 or repairing a bricked system.
• Download Link: Xiaomi BigOTA (Taiwan Fastboot)

Spoiler: xiaomi.eu HyperOS 2 Android 14 Custom ROM (China-base)

• Filename: xiaomi.eu_SUNSTONE_OS2.0.6.0.UMQCNXM_14.zip
• Size: ~4.25 GB from your list; SourceForge lists about 4.6 GB.
• Base Build: OS2.0.6.0.UMQCNXM – China HyperOS 2.0 for sunstone (Android 14).
• Android Version: 14.0.
• Type: xiaomi.eu custom ROM (multi-language, de-bloated China base, integrated Google services), not an official Xiaomi ROM.
• Notes: Intended for advanced users who want a “globalised” experience on China hardware; usually installed via custom recovery (TWRP/OrangeFox) or fastboot script, and requires an unlocked bootloader.
• Download Link: SourceForge (xiaomi.eu ROM)

Spoiler: TWRP Custom Recovery Image for sunstone (Unofficial)

• Filename: twrp-3.7.1_12-0-v1b-sunstone-Mechatron.img
• Size: 128 MB.
• Type: Unofficial TWRP recovery for Redmi Note 12 5G / Note 12R Pro (sunstone).
• Notes: Used to flash custom ROMs, root packages, or perform full backups; community reports note that some HyperOS builds may require updated recovery versions to handle encryption correctly.
• Download Link: SourceForge (TWRP image)

Spoiler: OrangeFox Custom Recovery for sunstone (Unofficial)

• Filename: OrangeFox-Unofficial-sunstone.zip
• Size: 68 MB.
• Type: Unofficial OrangeFox recovery build for Redmi Note 12 5G / Note 12R Pro (sunstone).
• Notes: Alternative custom recovery with its own UI and features; as with TWRP, use only if you understand custom recovery flashing and the potential risk of bootloops or data loss.
• Download Link: SourceForge (OrangeFox build)

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The Requirements​

• Redmi Note 12 5G / Redmi Note 12R Pro with codename sunstone, verified via Fastboot command

  fastboot getvar product

  (should output

  sunstone

  ).
• Bootloader unlocked with Xiaomi’s official unlock tool before flashing Fastboot ROMs or installing xiaomi.eu/custom recoveries.
• Windows PC with Xiaomi USB drivers and latest Android platform-tools (ADB/Fastboot) installed.
• Reliable USB-C cable and stable USB port to avoid interruptions during flashing.
• Xiaomi Mi Flash Tool to flash

  sunstone_*_images_OS2.0.x.0.UMQ***M_*.tgz

  Fastboot firmware, and a compatible custom recovery (TWRP/OrangeFox) if installing the xiaomi.eu ROM.
• Full backup of internal storage (apps, photos, chats), because a clean Fastboot flash or custom ROM install will usually erase all user data.

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How to Flash the Firmware​

1. On your Redmi Note 12 5G / Note 12R Pro, check your current software suffix (for example, UMQMIXM Global or UMQINXM India), then download the matching Fastboot ROM, such as

   sunstone_global_images_OS2.0.5.0.UMQMIXM_20251020.0000.00_14.0_global_f4ad534bf4.tgz

   for a Global device.
2. Boot the phone into Fastboot mode, connect it to your PC, and verify the codename with

   fastboot getvar product

   ; proceed only if it returns sunstone.
3. On your PC, fully extract the downloaded

   sunstone_*_images_OS2.0.x.0.UMQ***M_*.tgz

   file until you see the Fastboot ROM folder containing the

   images

   directory and flashing configuration files.
4. Open Xiaomi Mi Flash Tool, select the extracted Redmi Note 12 5G / Note 12R Pro (sunstone) Fastboot ROM folder, choose a suitable flash option (clean flash is recommended when fixing persistent bugs or moving from MIUI to HyperOS), and start the flashing process.
5. Wait until Mi Flash reports success, then reboot the phone and allow extra time for the first boot into HyperOS 2 (for example, OS2.0.6.0.UMQCNXM or OS2.0.5.0.UMQMIXM) after the clean installation.

To see every step with images and videos for flashing Xiaomi Fastboot ROMs using Mi Flash Tool, follow this detailed tutorial:
how to flash Xiaomi Mi, POCO, and Redmi smartphone firmware files with Xiaomi Mi Flash Tool.

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Frequently Asked Questions (FAQs)​

Spoiler: Which devices use the codename “sunstone”?

The codename sunstone is used for the Redmi Note 12 5G and Redmi Note 12R Pro family, and HyperOS/MIUI firmware databases bind OS2.0.x.0.UMQ***M builds to this codename.

Spoiler: Are OS2.0.6.0.UMQCNXM and OS2.0.5.0.UMQMIXM based on Android 14?

Yes, firmware trackers list OS2.0.6.0.UMQCNXM (China) and OS2.0.5.0.UMQMIXM (Global) as HyperOS 2.0 builds running Android 14 for Redmi Note 12 5G / Note 12R Pro.

Spoiler: What does the OS2.0.6.0.UMQCNXM update change?

China ROM pages specify that OS2.0.6.0.UMQCNXM updates the security patch to August 2025 and improves system security and stability; detailed bug-fix lists are not fully published.

Spoiler: Is xiaomi.eu_SUNSTONE_OS2.0.6.0.UMQCNXM_14.zip an official ROM?

No, xiaomi.eu_SUNSTONE_OS2.0.6.0.UMQCNXM_14.zip is a custom ROM built by the xiaomi.eu community on top of the official China OS2.0.6.0.UMQCNXM HyperOS base and is not supported by Xiaomi.

Spoiler: Can I flash a China HyperOS ROM (UMQCNXM) on a Global Redmi Note 12 5G (UMQMIXM)?

Firmware sources and community posts recommend keeping to your original region branch (MIXM, INXM, EUXM, TWXM, CNXM) because cross-region flashing can cause OTA, language, or network problems and should only be attempted by advanced users who understand the risks.

Spoiler: Will HyperOS 2 fix all lag and heating issues on sunstone?

HyperOS 2 Fastboot ROMs can repair corrupt updates and include optimization and security changes, and some users report smoother operation after clean flashing, but heavy 5G use and games still push the Snapdragon 4 Gen 1 SoC and can cause heat and throttling.

Spoiler: How do I verify that the ROM I downloaded is correct for my phone?

In Fastboot mode, run

fastboot getvar product

to ensure the device reports sunstone, then confirm that the build suffix (UMQCNXM, UMQMIXM, UMQINXM, UMQEUXM, UMQTWXM) matches the suffix in your current system version before flashing.