HMS Core on Xiaomi: the purpose and functions of the service

Owners of Xiaomi smartphones often notice a mysterious component called HMS Core in the list of running processes or in the application menu. This is puzzling, because Xiaomi traditionally uses its own MIUI shell (or HyperOS) and Google services. The appearance of the Huawei logo on another brand’s device looks like an invasion of foreign code, which naturally raises questions about the security and necessity of this service.

In fact, the presence of HMS Core (Huawei Mobile Services Core) is not a virus or a system bug; it is a system framework that is essential for the proper operation of applications developed by Huawei. Because the Android smartphone ecosystems are intertwined, many programs require specific libraries to run ads, analytics or gaming services, even if the phone itself is made by a competitor.

In this article, we will discuss in detail why this component is needed, what role it plays in the Android operating system based on MIUI and whether it can be turned off without harming the functionality of the device. Understanding the principles of background services will help you better control your gadget.

What is HMS Core?

HMS Core is a set of core software modules developed by Huawei to run its applications and services. Following the imposition of US sanctions and the ban on Google services (GMS) on new Huawei devices, the company was forced to create its own alternative. However, in order for old and new applications to continue to work on any Android devices, including Xiaomi, Samsung or Honor, this framework must be installed on the system.

Technically, it's the equivalent of Google Play Services. If you only use standard Google Play apps, you may not notice it working, but once you install an app from Huawei (like Huawei Health, MeeTime, or a Chinese bank app), the system will request an installation or update of HMS Core. Without it, the software will simply not start or will give you login errors.

⚠️ Note: Do not attempt to delete system files. HMS Core through root rights or ADB, If you are actively using applications in the Huawei ecosystem, this will cause programs that depend on those libraries to fail and may cause a cyclical reboot of Google Play services.

The framework provides connectivity between the Android operating system and applications by providing access to APIs for push notifications, geolocation, game analytics and cloud storage. On Xiaomi smartphones, it runs in the background and is activated only when requested by the relevant applications.

Why is Huawei not using Google Services?
After the sanctions of 2019, Huawei lost its license to use the company GMS. To avoid being left without an ecosystem, they developed HMS (Huawei Mobile Services and AppGallery Store. HMS Core is the foundation of this new ecosystem, allowing apps to run on any Android smartphone, even without Google’s services.

Why you need it on Xiaomi smartphones

Xiaomi smartphones are not originally equipped with Huawei services. However, in today's digital world, the boundaries between brands are blurred. The user can buy a Xiaomi phone, but actively use the activity tracker from Huawei (for example, the Mi Band bracelet is often confused with the Huawei Band, but for the latter you need HMS), play games published by Huawei's Chinese partners, or use specific banking applications.

The main reason for the appearance HMS Core on your device – installing a third-party application from AppGallery or APK-Many popular Chinese apps (TikTok, some versions of Telegram, games like Genshin Impact via certain launchers) may contain built-in apps. SDK (Huawei's developer kits for analytics or advertising, and when it first launches, it automatically initiates the installation of missing components.

  • 📱 Authorization: Allows you to log into a Huawei account ID, What is necessary to synchronize data in games and applications of the company.
  • 🔔 Push Notifications: Provides message delivery from Huawei apps even when they are closed using its own communication channels other than those of the company. FCM (Firebase Cloud Messaging).
  • ☁️ Cloud Storage: Provides access to Huawei Cloud for backup of contacts, photos and notes.

It’s also worth noting that some global applications can use HMS modules to work in China. If you’re traveling or using regional versions of programs, having this component ensures cross-regional compatibility. In MIUI or HyperOS, this process is usually hidden from the user’s eyes to avoid creating unnecessary visual noise.

📊 Are you using the Huawei ecosystem apps on Xiaomi?
Yeah, all the time.
I play games sometimes.
For bracelet/watch only
No, I deleted it all at once.

The main functions and capabilities of the service

HMS Core is much more than just an app launcher, a comprehensive platform that takes on a variety of tasks, making life easier for developers and users. On Xiaomi devices, these functions run in the background, consuming minimal resources in the idle.

One of the key features is the Account Kit, which allows users to quickly log in to apps using a single Huawei account, which eliminates the need to enter a username and password every time, and also makes it easier to restore access, which is a way for developers to keep an audience within their ecosystem.

Another important aspect is Game Service. Gamers will appreciate the ability to keep progress in the cloud, reach (achievement) and leadboard. If you play projects that support Huawei GameEngine, without running HMS Core, you will not be able to save your progress or access online game features.

ModuleFunctionThe impact on Xiaomi
Push KitDelivery of noticesNotifications from Huawei applications
Location KitGeopositioningAccuracy of maps and navigation in third-party applications
Scan KitCode scanningQuick reading QR-codes in cameras and applications
Drive KitDriver modeIntegration with Huawei HiCar Automotive Systems

The ML Kit (Machine Learning) is a module that provides artificial intelligence functions such as image recognition, real-time translation, camera object identification, and if you use Huawei applications to scan documents or translate, this module processes data.

💡

HMS Core on Xiaomi acts as a bridge that allows Huawei applications to run on someone else’s hardware platform, giving them access to the necessary system resources.

Impact on productivity and battery

Xiaomi owners often worry about battery life. The question of whether HMS Core is eating a battery is natural. Like any background service, it consumes resources, but in normal mode this consumption is minimal. Problems begin when the service gets into a cycle of errors or constantly tries to sync data with a bad connection.

MIUI is known for aggressive memory optimization, which can prematurely terminate HMS Core processes as inactive, and in response to this application, Huawei may try to restart the service, leading to short-term power surges. If you don’t use Huawei products, this ping-pong process can actually drain the battery.

To minimize the impact on the battery, you should check the energy saving settings. Android allows you to limit background activity. However, you should do this carefully: a complete restriction can disrupt the notifications.

  • 🔋 Background activity restriction: Allows the application to only work when it is open on the screen.
  • 🚫 Auto Start: Disabling Auto Start will prevent service from starting immediately after the phone is turned on.
  • 📶 Mobile data: Prohibition of the use of mobile data for background synchronization (wi-fi only).

⚠️ Note: If you see that the process HMS Core consumes more than 5-7% If you're charging a day without active tasks, it's a sign of a failure. Try clearing the app cache or reinstalling the latest version.

It is also worth considering that constant attempts to connect to Huawei servers in regions with unstable Internet can keep the communication module active longer than necessary, which also affects autonomy.

💡

Use Xiaomi’s built-in Security tool to check for viruses. Sometimes miners may disguise themselves as system processes, but Huawei’s original HMS Core is a secure system component.

Instructions: How to Update or Reinstall

Updating HMS Core is critical to the security and stability of applications. Older versions may contain vulnerabilities or not work properly with new versions of Android on your Xiaomi. Update usually occurs automatically through the AppGallery app or through the built-in update mechanism of the service itself.

If the automatic update doesn't work or you're experiencing errors, you can manually install it. APK-The latest file from Huawei’s official website or trusted source, make sure that security settings allow applications from unknown sources to be installed before installation.

☑️ Checklist for updates HMS Core

Done: 0 / 5

The manual installation process is as follows:

  1. Go to Settings → About the phone and watch the Android version.
  2. Download the HMSCore.apk file that matches your CPU architecture (usually arm64-v8a).
  3. Open the file through the file manager and click Install.
  4. Wait for the process to be completed and run the application causing the error.
adb install HMSCore_5.x.x.x.apk

For advanced users, installation is available through ADB (Android Debug Bridge, which avoids access rights issues. The command above demonstrates the basic syntax for installing the package. Once installed, it is recommended to clear the cache through Settings → Annexes → Application management → HMS Core → Clear the data.

What if the installation is blocked by MIUI?
Xiaomi’s MIUI Protect can block APK installations from third-party sources, labeling them as potentially dangerous, in which case you must click “Still Install” or temporarily disable scanning in the Security app.

Can I remove HMS Core from Xiaomi?

Removing HMS Core is possible, but it depends on your use case. If you have never used Huawei devices, have never installed their applications, and do not plan to do so in the future, removing the service will make room and eliminate background activity. However, if you occasionally run applications that depend on these libraries, removing them will lead to their failure.

Simply remove the system application through the usual settings → The application will not work, the button will be inactive. To completely remove it, you will need root rights or use. ADB-This is a risky operation: an inexperienced user can delete the excess and disrupt the system.

A safer alternative is to freeze or restrict the rights, so you can prevent the application from running automatically, disabling notifications and accessing the network, which will effectively turn the service into a dead load that will not interfere with the system, but can be activated quickly if necessary.

  • 🛑 Disable notifications: Removes annoying reminders about the update.
  • 🔒 Restriction of Rights: Prohibits access to microphone, camera and geoposition.
  • 📵 Traffic blocking: Bans the app from going online, which stops background synchronization.

When deciding whether to remove a service, weigh the pros and cons. The space savings are only a few dozen megabytes, and potential compatibility issues with popular applications can cause more hassle than the background work of a single service.

Do I need HMS Core if I am not using Huawei?
If your phone doesn't have Huawei apps pre-installed and you haven't downloaded them yourself (like Huawei Health for the wristband), you don't theoretically need the service. However, many global apps contain Huawei analytics libraries built in. Deleting these apps can lead to crashes. It's safer to just restrict their rights.
Why does HMS Core need to be updated?
This is standard security procedure. Like Google Play Services, HMS Core updates independently of the operating system to close vulnerabilities and add support for new APIs for applications. Frequent requests may be caused by the application installed requiring a newer version of the library than the one you have.
Is it safe to give HMS Core permissions on Xiaomi?
Yes, it is an official system component from a major manufacturer: Geolocation, Bluetooth or notification requests are required for claimed features (trackers, notifications, cloud) and Huawei’s privacy policy states that it is GDPR compliant, although users who fear privacy should read rights requests carefully.