The question of when will Android 12 on the Xiaomi Redmi Note 9, remains one of the most discussed among the owners of this popular smartphone. It has been several years since the device was released, and users are rightly waiting for the latest versions of the operating system to ensure security and compatibility with new applications. MIUI Often imposed by severe marketing and technical constraints.
In this article, we will take a closer look at the current status of firmware, explain why the official update may not come, and consider the available alternatives. It is important to understand that Xiaomi’s policy regarding support for budget and mid-budget models has changed, which directly affects the Redmi Note 9.
Many users confuse the MIUI shell version with the Android operating system version. This nuance often causes confusion when the expected features of the new OS do not appear after the interface update. We will analyze the technical specifications of the Snapdragon 730G and Helio G85 processor to see if they have the resource to work with heavier versions of Android.
Current status updates for Redmi Note 9
Official support for Xiaomi Redmi Note 9 (global version) ended on the version of Android 11 with a shell MIUI 12.5 This means that Xiaomi has decided not to release an official OTA-Update to Android 12 for this model in the global market.For the Chinese version of the smartphone known as the Redmi Note 9 4G or Redmi 10X 4G, The situation is similar, although the firmware release schedules in China and abroad often differ.
The latest major update for the device was MIUI 12.5 Enhanced Edition, which brought memory optimization and improved background work, but the basic kernel version remained the same. Users waiting for the official release of Android 12 on the Redmi Note 9, most likely, will face disappointment, as the cycle of support for two major OS updates for this segment of devices has expired.
However, security continues to receive patches, albeit with less regularity. Google Play Services updates independently of the Android version, allowing most apps to work correctly. However, the lack of new OS-level features, such as new-generation widgets or improved privacy controls, is palpable for those who are used to fresh interfaces.
⚠️ Note: Attempts to install global firmware from another model (cross-regional firmware) can lead to loss of warranty and software errors, such as broken NFC camera.
Why Redmi Note 9 doesn’t get Android 12
The main reason for stopping the updates is Xiaomi’s policy, which limits the number of major Android updates for mid-range and budget devices to two generations. Redmi Note 9 came with Android 10, got Android 11, and this cycle ended. This is standard practice for many manufacturers looking to stimulate sales of new models.
Technical constraints also play a role. While the Snapdragon 730G processor is theoretically capable of running Android 12, optimizing the drivers and camera components requires significant resources from engineers. MIUI 13 and MIUI 14 require more processing power, and installing them on older hardware platforms can lead to unstable operation and fast battery discharge.
Chinese versions of devices often get updates longer, but flashing the global version to the Chinese version (CN ROM) carries risks. Chinese firmware does not have Google Play by default, and there may be problems with Band 20 communication frequencies critical for 4G in Europe and the CIS.
- 📉 The policy of two-year OS updates for the budget segment.
- 🔋 Risk of reduced autonomy on old "iron" with new heavy shell.
- 🌏 Differences in regional software assemblies and lack of cross-regional support.
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The official support cycle for Redmi Note 9 is completed on Android 11, further updates are possible only through third-party solutions.
Technical capabilities and limitations of MIUI 12.5
Despite the absence of Android 12, the MIUI 12.5 shell has introduced a number of important changes that partially compensate for the lack of a new OS. The memory management system was rewritten, which is especially true for models with 4 GB of RAM. The focus algorithm allows applications to work faster, and background processes do not “eat” battery power as aggressively as in previous versions.
Visual changes to MIUI 12.5 include new unlock animations, live wallpaper and a redesigned control center. However, many features, such as iOS 14/15-style widgets, only appeared in later versions of MIUI, which, alas, are not available for the Redmi Note 9 officially.
For users who want to stay on the official firmware, it is important to update apps regularly through the Google Play Store and GetApps.This ensures that security services are up to date. It is also worth paying attention to Google security patches, which may come separately from major system updates.
| Characteristics | Android 10 (Stock) | Android 11 (MIUI 12.5) | Android 12 (Informal) |
|---|---|---|---|
| Management of rights | Basic | Single-use permits | Privacy panel |
| Widgets | Standard. | Standard. | Interactive |
| Productivity | Tall. | Optimized. | Depends on the build. |
| Stability | Stable. | Stable. | Possible bugs |
Alternative methods of installation: Custom ROM
If you’re a tech-savvy user and want to get Android 12 or even Android 13/14 on the Redmi Note 9, the only option is to install custom firmware (Custom ROM).The XDA Developers community is actively supporting this device by building builds based on LineageOS, Pixel Experience and crDroid.
The installation process requires unlocking the bootloader. For Xiaomi devices, this means waiting 168 hours (7 days) after submitting an application through the official Mi Unlock utility. Once unlocked, you can install the custom TWRP receivers through which the new system is installed.
☑️ Preparation for the installation of Custom ROM
However, there are serious downsides to this method: First, unlocking the bootloader resets security settings, which causes banking applications and Google Pay to stop working (although this can be bypassed through Magisk, but this is a cat-and-mouse game). Second, the camera quality on custom firmware is often worse than on stock MIUI, due to the lack of original photo processing algorithms.
What are GApps and why do they need them?
Risks and consequences of informal updating
Switching to unofficial Android 12 is always a lottery. You can get a fresh interface and new features, but lose stability. Frequent problems include overheating the processor, flying Bluetooth or a crumbling proximity sensor. For an everyday smartphone that needs to work here and now, this can become critical.
Data security is another important aspect: downloading firmware from unverified sources risks giving intruders access to your personal data, passwords and bank cards. Xiaomi’s official firmware is verified by signature, while the integrity of custom builds is guaranteed only by the reputation of the developer.
⚠️ Attention: Installing custom firmware automatically voids the warranty on the device. Restoring the original state is sometimes difficult or impossible without special equipment.
It is also important to note that Widevine L1 (viewer HD-content in Netflix and other streamings, when unlocked, the bootloader often drops to the level of L2 or L3. This means you will no longer be able to watch high-resolution movies, and quality will be limited. 480p or 540p.
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Before any firmware manipulations, be sure to make a full backup of important data to an external medium or to the cloud, as the unlocking process completely erases the phone’s memory.
Performance comparison: Stock ROM vs Custom
On the stock MIUI 12.5 (Android 11), the Redmi Note 9 behaves predictably. The interface may seem a bit heavy, especially transition animations, but all features work normally. Autobrightness, power management and modem operation are debugged with years of updates.
On custom Android 12 (like LineageOS 19), it works noticeably faster and smoother, removes MIUI visual debris, frees up RAM, but you lose ecosystem chips: the theme of the design, second space, game modes and integration with other Xiaomi devices.
- 🚀 Speed: Custom ROM usually faster and more responsive.
- 📸 Camera: Stock firmware always shoots better thanks to original drivers.
- 🔋 Battery: On a custom, the operating time can both rise (less background processes) and fall (poor optimization).
Concluding opinion and recommendations
To sum up, Android 12 will not officially launch on the Xiaomi Redmi Note 9.The support cycle is over, and the company has focused resources on newer models. For the average user who cares about a stable phone for calls, instant messengers and social networks, the best solution will be using the latest available version of MIUI 12.5.
If you’re an enthusiast, want to experiment and get a new experience, installing a Custom ROM based on Android 12/13 will give your device a second life, but be aware of the risks: loss of warranty, possible bugs and the need for technical knowledge to maintain the system.
In any case, the Redmi Note 9 remains a strong middleman, which even on Android 11 is able to provide comfortable use in 2026-2026 thanks to regular updates to Google applications and services.
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For 90% of users, the latest official MIUI 12.5 will remain the best choice, as it provides the best balance of stability and functionality.