MIUI Daemon on Xiaomi: purpose, system impact and ways to delete

If you’ve ever looked into a running process list on a Xiaomi smartphone through Settings → Applications → Launched or specialized utilities like the CPU Monitor, you’ve probably come across the mysterious name miui.daemon. This system service is constantly hanging in memory, consuming CPU resources and sometimes even appearing in reports of high battery consumption. But what does it actually do? Is it critical to the operation of MIUI, or can be painlessly removed to free up RAM?

In this article, we will explore in detail what MIUI Daemon is, how it relates to the firmware architecture of Xiaomi, what functions it performs in the background, and – most importantly – whether it can be disposed of without risking turning a smartphone into a “brick.” We will also analyze myths about its impact on performance, compare the behavior of the service on different versions of MIUI (from MIUI 12 to MIUI 14), and give clear instructions for those who still decided to experiment with it.

We warn you right away that there are always risks involved in interfering with system processes, but if you are prepared for the consequences, go ahead!

What is MIUI Daemon and why is it needed?

MIUI Daemon (or miui.daemon) is a background system process that is part of Xiaomi’s MIUI firmware, and its primary function is to manage system updates, verify file integrity, and coordinate other system services, essentially a “task manager” for internal MIUI operations that:

• 🔄 Controls software updates: monitors the availability of new versions MIUI, loads them in the background and prepares for installation.
• 🛡️ Checks system file integrity: compares hash sums of critical components to reference values to prevent failures due to corrupted data.
• ⚙️ Managing services MIUI: Starts and stops system processes on schedule (e.g., cleaning cache or optimizing battery life).
• 📡 Interacts with Xiaomi servers: sends anonymous telemetry (if allowed in the settings) and receives commands for remote control of the device (for example, locking when lost).

In practice, miui.daemon works as an intermediary between the user interface and Android deep mechanisms. For example, when you manually check for updates through Settings → About Phone → System Update, it is this process that initiates a request to Xiaomi servers and processes the response.

It's important to understand that MIUI Daemon is not a virus or malware, despite its suspicious behavior. It's embedded in the firmware at the kernel level and cannot be removed by standard means without consequences. However, its activity can vary depending on the MIUI version and smartphone model. For example, on the Redmi Note 10 Pro with MIUI 13, it consumes less resources than on the Poco X3 Pro with MIUI 12.5, where there are often jumps in CPU downloads up to 15-20%.

How does MIUI Daemon affect smartphone performance?

The main complaint users have about MIUI Daemon is its appetite for resources, and monitoring data (e.g., through the DevCheck app) suggest that the process can:

• 📈 To take up to 50-100 MB of RAM in standby mode and up to 150-200 MB in active operations (for example, during update checks).
• ⚡ Load the processor at 5-20% peak times, which is noticeable on weak chipsets (Snapdragon) 6xx or Helio Gxx).
• 🔋 Battery consumption: up to 2–5% charge per day at constant activity (according to AccuBattery).

However, the real impact on productivity depends on several factors:

For example, on the Xiaomi Mi 11 Ultra with MIUI 13, the process is almost invisible, while on the Redmi Note 8 Pro with MIUI 12.0.3, it can cause slowdowns when multitasking, the reason is that older versions of the firmware are less optimized, and weak processors are less able to cope with background tasks.

⚠️ Note: If you notice that miui.daemon consumes more than 30% CPU for a long time (more than 10 minutes), this may indicate a looping process or damage to system files, in which case it is recommended to restart the device or check the integrity of the firmware through Settings. → The phone. → Version. MIUI → Checking for updates (even if there are no updates, this will reset some system caches).

Can I remove MIUI Daemon without consequences?

The short answer is: technically yes, but this will render key MIUI features, including system updates, some security settings, and synchronization with Xiaomi account, inoperable, and will result in the deletion of a whole process, which is equivalent to the removal of a part of the firmware core, which can result in:

• 🚫 Unable to update: manual and automatic update checks will stop working.
• 🔒 Loss of access to Xiaomi services: cloud backup, search device (Find Device), synchronization of notes and contacts.
• ⚠️ System failures: accidental reboots, errors in the installation of applications, problems with the operation of sensors.
• 🛠️ Difficulties in recovery: if after removal there are problems, you can return everything back only through a complete flashing (fastboot).

However, there are alternative ways to reduce its activity without resorting to radical measures:

1. Turn off automatic update check: Go to Settings → The phone. → Updating the system → ⚙️ (three-point) → Update settings and deactivate the option Auto boot via Wi-Fi.
2. Limit background activity: In Settings → Applications → Application Management → System applications find System Update (or Updater), open Battery → Background Activity Management, and select Limit.
3. Freeze the process via ADB (for advanced users): Connect your smartphone to your PC, activate USB Debugging, and execute the command: adb shell pm disable-user --user 0 com.android.updater This will disable the update service, but will not affect other features of miui.daemon.

If you do decide to take the risk of removing the process completely, the only relatively safe way to do this is to deactivate through Magisk.

1. Install Magisk and Systemless Hosts module.
2. Download the file. miui_daemon_disabler.zip (available on forums XDA Developers).
3. Install it through Magisk Manager and restart the device.

⚠️ Note: Even when using Magisk, there is no guarantee that after removing miui.daemon, the smartphone will work stably. F3) This leads to loss of access to the developer settings and the inability to enable debugging. USB factory-free.

Myths and truths about MIUI Daemon: debunking misconceptions

There are many myths surrounding MIUI Daemon that often mislead users.

Myth 1: “It’s a virus, it needs to be removed!”

❌ Miui.daemon is the official component MIUI, And it's a digital signature of Xiaomi. Viruses can't tamper with system processes at this level without hacking the bootloader. /system/bin/miui.daemon via Termux:

sha256sum /system/bin/miui.daemon

Compare the result with the reference values for your version of MIUI (you can find them on XDA Developers).

Myth 2: “It slows down your smartphone by 50%!”

❌ True: On modern flagships (Xiaomi) 13T, Redmi K60) The process consumes no more than 1–3% CPU Prominent lags are usually caused by other causes: overheating, lack of memory or conflicts with custom firmware.

Myth 3: “When removed, the smartphone will be faster”

❌ Truth: Freed 50-100 MB of RAM will not give a noticeable increase in performance, and without miui.daemon system will waste resources on the processing of errors associated with the lack of critical services.

💡

MIUI Daemon is not an enemy, but part of Xiaomi’s ecosystem, and removing it will cause more problems than benefits if you’re not ready to manually set up the system.

How to do without MIUI Daemon?

If you are really annoyed by the presence of MIUI Daemon, the most radical, but also the most reliable way to get rid of it is to install custom firmware that is not based on MIUI.

• 📱 LineageOS: “clean” Android without unnecessary services Xiaomi. supports most models, but may lose some features (for example, IR Blaster on Redmi).
• ⚡ Pixel Experience: Google Pixel-optimized firmware for performance. It doesn't have miui.daemon, but it requires unlocking the bootloader.
• 🔧 ArrowOS: Balance between stability and customization. OTA-Update, but not tied to Xiaomi servers.
• 🛡️ Havoc-OS: for enthusiasts willing to sacrifice stability for flexibility, allows you to manually disable any system processes.

The process of installing custom firmware includes:

1. Unlock the bootloader through Mi Unlock Tool (requires a Xiaomi account binding and waiting 7-15 days).
2. Installation of custom recavery (TWRP or OrangeFox).
3. Format the data partition and install firmware via adb sideload or from a memory card.

Example of commands to install via fastboot:

fastboot flash boot twrp.img


fastboot reboot recovery



TWRP:



adb sideload lineage-19.1-20230601-nightly-alioth-signed.zip

⚠️ Note: Installing custom firmware voids warranty and may result in loss of features specific to Xiaomi (e.g. Quick Apps or Game Turbo). 12S Ultra) unlocking the bootloader leads to blocking of broadband modules 5G (Xiaomi's Limitation for Chinese Versions).

💡

Before installing custom firmware, check its compatibility with your model on the XDA Developers website. For example, the firmware for the Redmi Note 10 Pro (sweet) will not work for the Poco X3 Pro (vayu), despite similar features.

How to check if MIUI Daemon is damaged?

If Daemon’s MIUI is suspicious (e.g., constantly loading the CPU or causing crashes), it may be that its files are corrupted.

1. Using Logcat: Connect your smartphone to your PC, activate USB Debugging and execute: adb logcat | grep -i "miui.daemon" If there are many errors in the logs such as E/miui.daemon: Failed to verify package or W/miui.daemon: Connection refused, this indicates problems with the process.
2. Through Termux: Install Termux from F-Droid and execute: su ls -la /system/bin/miui.daemon md5sum /system/bin/miui.daemon Compare the results. md5-hash with official values for your version MIUI.

If you find damage, try the following steps to repair:

• 🔄 Reset the system cache through TWRP or the standard recovery menu (Settings) → The phone. → Resetting settings → Erase the cache).
• 📥 Reinstall the firmware through MIUI Recovery (without data loss): download the full service pack (.zip) for your model and install it via System Update → Three points. → Select the update file.
• 🛠️ Restore Fastboot: Fastboot Flash System system.img fastboot flash boot boot.img

FAQ: Frequent questions about MIUI Daemon