How to disable Xiaomi Logd: the complete guide

Many advanced users of Xiaomi, Redmi and POCO smartphones sooner or later face the need to fine-tune the system, including the question of how to disable Xiaomi Logd. This system process is responsible for collecting, storing and rotating logs (event logs) that are generated by the Android operating system and the shell of MIUI or HyperOS. While for developers and diagnosticians it is an indispensable tool, in everyday life it can consume resources and take up space in memory.

However, before taking drastic action, it is important to understand that completely removing or aggressively disabling system components can lead to device instability. In this article, we will detail secure logging management methods, explain the difference between regular logs and Mi Log, and provide step-by-step instructions for users with different levels of technical training.

It is worth noting that standard MIUI features often hide this feature from the eyes of the average user, so for deep customization we will have to turn to more advanced tools such as ADB (Android Debug Bridge) or use special applications for optimization.

What is Logd and Why is it Needed in MIUI?

The logd process is a fundamental part of Android’s architecture, responsible for managing the log buffer. When you launch an app, it can send messages about its work to this buffer. On Xiaomi smartphones, the situation is complicated by the presence of additional telemetry collection services, such as Mi Log or Logkit, which can duplicate data and send it to the company’s servers for error analysis.

The main problem is that if you experience a system failure or an application bug, the logging process can enter a loop, starting to write thousands of lines per second. This phenomenon, known as the log loop, can quickly exhaust free space in internal memory and cause a noticeable decrease in CPU performance, and it is in such situations that the question of how to disable Logd Xiaomi becomes especially relevant.

⚠️ Warning: Completely disabling the system logger may result in a critical bootloop error that prevents you from obtaining diagnostic data to restore the system.

Developers use this data to debug, but the average user doesn't need it most often. Moreover, constant writing to flash memory can theoretically shorten its life, although on modern storage devices this effect is minimal. However, freeing up RAM and reducing the background load on the CPU are real benefits from a competent logging configuration.

It is important to distinguish between standard Android Logd and proprietary Xiaomi services. While the former is essential for the basic operation of many applications, the latter can often be safely deactivated without any apparent implications for interface stability.

Analysis of the impact of logs on productivity

Before you look for ways to shut down, you should evaluate how much the logging process affects your device. Normally, resource consumption is minimal, but if there are errors in the system code or conflicting applications, the load can increase exponentially, and you can notice this by the increased heating of the case in standby mode or the rapid discharge of the battery.

You can use built-in developer tools or third-party system monitors to diagnose it. mi_log It consumes a significant percentage of CPU time, it is a direct signal to action, in such cases, disabling or limiting logging becomes not just a desire, but a necessity for comfortable use of the smartphone.

There is a common misconception that turning off logs makes the interface work much faster. In fact, the performance gains will only be noticeable when the system is suffering from a “log storm.” In normal operating mode, you will hardly notice a difference in the speed of opening applications, but the amount of free memory can increase.

Also worth mentioning is privacy: Logs can contain information about which apps you run, what errors you've encountered, and even geolocation data (if they were part of an error report), and by disabling that data, you're increasing your digital privacy, which is a priority for many users.

Method 1: Disconnection through developer settings

The safest and easiest way to limit logging is to use the built-in Android capabilities available through the developer menu, which does not require root rights or a computer connection, making it ideal for the initial optimization level, but does not shut down the process completely, but only limits its activity.

To start, activate the developer mode. Go to Settings → About Phone and quickly click 7 times on the MIUI Version (or OS Version). After the notification that you have become a developer, go back to the main settings menu and find the Additional → For Developers section.

Inside the developer menu, scroll down to the "Debugging" or "Journalization" section. We're interested in the "Logger buffer size" item. By default, it can be set to "16M" or "4M." Changing this setting to a lower value (for example, "64K" or "Disabled" if such an option is available in your firmware version) will limit the amount of memory allocated for logs.

This section may also include the option of "Log" or "System logging." If you see a switch that allows you to turn it off, feel free to do so, and this action will stop most system events from being recorded in the main buffer, which will immediately reduce the load on the disk subsystem.

⚠️ Note: Do not disable items related to "Debugging by" USB" or "USB-configuration" if you are not sure of their purpose, as it may disrupt the connection to the computer.

After making the changes, be sure to restart the device, so that the new buffering settings take effect and the old logs are cleared, and check your memory consumption after a couple of hours of operation, the changes should be noticeable.

Method 2: Using ADB for deep customization

If standard settings don’t work, you can use a more powerful tool called Android Debug Bridge (ADB), which allows you to send commands directly to the system without the interface limitations, requiring a computer (Windows, macOS or Linux) and a USB cable.

First, you need to install ADB drivers on your computer and enable USB Debugging in the developer menu on your phone. Connect your smartphone to your PC and select File Transfer Mode. Open the Command Prompt (Terminal or CMD) in the folder with the ADB installed and type in the adb device command. The phone screen will see a request for debugging permission — confirm it.

adb shell pm disable-user --user 0 com.miui.misys

The above command disables the MiSys system service, which is often responsible for collecting telemetry and logs in the MIUI shell. It is important to understand that we are not removing the application, namely disabling it for the current user (user 0), which is a safe practice.

You can also try limiting the size of the log buffer directly through ADB if the developer's settings are blocked by the manufacturer.

adb shell log size -b all 64K

This command compulsorily sets the size of all log buffers (main, system, radio, crash) at 64 kilobytes. This is enough for basic diagnosis, but not enough for garbage accumulation. To reset the log settings, you can use the adb logcat -c command, which will clear the current buffer.

Remember, using ADB gives you administrator rights as part of debugging. Don't follow commands that you don't understand, especially those that contain the words uninstall or delete. We only use disable-user, which is reversible.

Method 3: Disconnect via hidden CIT and Logkit menu

Xiaomi smartphones have a CIT (Cellular Identity Tag) engineering menu available through a special code in the "caller." Dial ##6484## or ##4636##. Depending on the model and version of Android, additional log-in switches may be available here.

Logkit (or com.xiaomi.logkit) is of particular interest. In some versions of MIUI, you can find it in the list of applications if you sort them by system. When you run Logkit, you can see the logging level settings. If you can choose the "None" or "Error" level instead of "Verbose" or "Debug", select the minimum one.

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If the Logkit icon is hidden, try using the Activity Launcher app from Google Play to find and run hidden activity of system services.

Another effective way is to use freezer applications such as: SD Maid or Freezer, which require Shizuku or root rights, can be used to freeze the process. mi_log, It's not consuming resources when frozen, but it can be defrost at any time.

The table below will help you to orientate which processes can be touched and which ones are better not to touch:

When working with the engineering menu, be extremely careful. Changing the settings of the radio module or other critical components without understanding the consequences can lead to loss of communication.

Possible problems and solutions

After disabling logging services, users sometimes experience unexpected system behavior, such as some applications that may stop working properly if they rely on logging for their own diagnosis, and in rare cases, there may be an increase in system load time.

If you notice that after applying the settings, the phone began to behave strangely (spontaneous reboots, interface departures), the first thing you need to do is return all the changes back. ADB use the command:

adb shell pm enable com.miui.misys

This will re-enable the previously disabled package. If you changed the buffer size in the developer settings, just return the default value (usually 4M). In case the phone stopped booting (bootloop), you will need to log in to Recovery mode and reset to factory settings (Wipe Data), so always back up important data before experimenting.

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Always keep the option of rollback changes: Write down ADB commands or take screenshots of settings before they change.

Also, you should consider that after a major MIUI or HyperOS update, all settings can be reset to factory settings. You have to repeat the setup procedure again. This is normal behavior of Xiaomi's security system.

⚠️ Note: If you use banking applications or corporate profiles (MDM), Aggressive shutdown of system services may cause security services to block access to them.

In some cases, antivirus programs or built-in security may perceive attempts to shut down system processes as an attack and block them, in which case add the tools used (for example, ADB or Task Manager) to the exceptions.

Frequently Asked Questions (FAQ)