Debug Log on Xiaomi: why you need, can you delete and how to clean

Have you ever looked into your Xiaomi store and found mysterious files called debug logs that take up gigabytes of memory? Or maybe your smartphone started to slow down and the list of “big files” flaunts debugging logs that you didn’t even create? This article will explain what debug log is on Xiaomi, Redmi and other devices. POCO, Why they appear, whether they can be safely removed – and most importantly, how to do it without risking the system.

Spoiler: 90 percent of the time, you can delete these files, but there are nuances, like if you're actively testing betas of firmware or using developer tools, some logs might come in handy. We'll also tell you how to turn off automatic log creation if they fill up memory without you knowing, and for advanced users, we'll look at where those files are stored and how to find them manually.

What is debug log and why is it needed by Xiaomi?

Debug logs are files that a system or application records information about its work, created to diagnose errors, track crashes, and help developers find bugs. On Xiaomi smartphones, these logs can appear for several reasons:

• 🔧 Developer mode is enabled in the settings (even if you don’t use it).
• 📱 Beta versions MIUI Or custom firmware automatically collect extended logs.
• 🐞 System or application failures (e.g. sudden reboots, freezes).
• 🔄 Software updates, especially if the process is interrupted or error-prone.
• 🤖 Debugging applications (e.g, ADB, Logcat or tools to unlock the bootloader).

In most cases, these files are not needed by the average user, they take up space in memory (sometimes up to several gigabytes!) and can slow down the device if there are too many of them.

• 🛠️ Diagnose the cause of persistent reboots or drop-offs of apps.
• 📡 Send a report in support of Xiaomi, if the device is warranty and requires repair.
• 👨‍💻 Developers of applications for compatibility analysis with MIUI.

If you don't belong to these categories, you can safely delete the logs, but first, let's figure out where they are stored and how to find them.

Where debug log files are stored on Xiaomi, Redmi and POCO

Debugging logs on Xiaomi devices can be in several folders, their location depends on the version. MIUI and smartphone models, but most often they hide here:

To see these folders, you’ll need a file manager with access to the root directories (e.g., built-in file manager). MI File Manager or Solid Explorer.Some folders may be hidden - enable the display of hidden files in the manager settings.

Important: folder /data/log available only with root rights or through ADB. Do not delete files manually from there unless you are sure of your actions – this can cause system failures.

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If you don't find the folder debug_log, Try typing its name into the file manager search bar, and it's often hidden from other system directories.

Can you delete debug log on Xiaomi: risks and consequences

The short answer is yes, 99 percent of the time you can, but there are a few things you should know about:

• ✅ Safe to remove: 📁 Logs from a folder. /sdcard/MIUI/debug_log. 📁 Files with the.log,.txt or.dump extension in application folders. 📁 Logs of updates (recovery/log), Unless you plan to roll back the firmware.
• ⚠️ Remove with caution: 🛑 Files in /data/log (Root rights are required). 🛑 Logs created manually through ADB or Logcat if you use them for debugging.

What happens if you delete all the logs? Most of the time, nothing. The system just stops storing records of past errors.

⚠️ Note: If you are participating in a beta test MIUI If you send error reports to support Xiaomi, deleting the logs can make it harder to diagnose the problems, in which case, leave at least the latest files (in the last 1-2 days).

Another thing is that some apps (like Google Play Services or Mi Fit) can create their own logs to analyze work, and deleting them won’t hurt, but they will reappear the next time the app is launched.

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Deleting debug log doesn’t affect smartphone performance, but it frees up space in memory, so if logs reappear, it’s some active service or application that creates them.

How to delete debug log on Xiaomi: 4 proven ways

Now, let's get to the practice. Here are all the working methods for cleaning logs, from the simplest to the most advanced:

1. Delete via file manager (the easiest way)

Suitable for most users:

1. Open the MI File Manager (or any other file manager)
2. Move to the /sdcard/MIUI/debug_log.
3. Select all files (long press) → "Choose everything").
4. Click "Delete" and confirm the action.

If the folders debug_log No – check other paths from the table above.

2. Cleaning through storage settings

This method is suitable if logs take up a lot of space and are displayed in the "Large files" section:

1. Go to Settings. → Memory.
2. Click on "Large Files" or "Other Files".
3. Find files with the names debug, log, or dump.
4. Select them and delete them.

3. Resetting logs through developer mode

If logs are created due to the debugging mode enabled:

1. Open the Settings. → About the phone and 7 times click on "Version" MIUI", activate the developer mode.
2. Back to Settings → Additionally. → For developers.
3. Find the option "Error logs" or "Debugging by" USB" and turn it off.
4. Reset the device.

4. Removal through ADB (advanced)

If logs are stored in secure folders (for example, /data/log), You can remove them through the command line:

adb shell


su




rm -rf /data/log/*




rm -rf /sdcard/MIUI/debug_log/*

This method requires an unlocked bootloader and root rights, and without them, the commands won't work.

Backup of important data

Check if you are participating in the beta test MIUI

Make sure the developer mode is disabled (if not needed)

Use a reliable file manager-->

Why Debug Log Reappears and How to Stop It

You deleted the logs, but after a day or two, they took up gigabytes of memory again, which means that some service or application is actively creating them.

• 🔄 Automatic debugging in MIUI: Some firmware versions include extended logging by default.To disable: Go to Settings → Additionally. → For developers, find the "Enable logging" option and turn it off. USB" and "Journals" HCI" (if).

Beta version MIUI:

If you're in a beta program, the system compels logs to report.

• Unsubscribe from the beta program in the Mi Community app.
• Install a stable version of the firmware.

Debugging applications:

Programming programs like Logcat Extreme, ADB AppControl or Mi Unlock can create logs. Delete them or turn off background activity in the battery settings.

System failures:

If the smartphone is rebooted frequently or apps crash, MIUI It automatically creates error dumps:

• Check your device for viruses (for example, through Mi Security).
• Update the firmware to the latest version.
• Reset the settings to factory (if the problem does not disappear).

Critical information: If logs continue to appear after all settings are turned off, this may indicate a hardware problem (for example, a CPU or memory malfunction).

What to do if after debug log removal, the smartphone began to slow down

In rare cases, after cleaning logs, users notice a device slowing down, which is not directly related to deleting files, but may be a coincidence. Here are the possible causes and solutions:

• 🔄 Background optimization MIUI: After you delete a lot of files, the system can start re-indexing the storage. Wait 10 to 15 minutes, the brakes should disappear.
• 🗑️ Memory fragmentation: If logs took up a lot of space, deleting them could lead to fragmentation.Solution: Reboot the device. Use built-in optimization in Settings → Memory. → Cleanup.

Failures in system services:

If you have deleted logs from secure folders (for example, /data/log) without root rights, it could interrupt some processes:

• Restart your smartphone in safe mode (press the power button → “Safe mode”).
• If the brakes are gone, there's a problem with one of the apps. Remove the newly installed software.

⚠️ Note: If after deleting the logs, the smartphone began to restart itself or crashed system applications (for example, Settings or Phone) – most likely, you deleted critical files from the folder. /data. In this case, only reset to factory settings will help.

In 99% of cases, debug log removal does not affect performance; if brakes appear, look for something else (such as overheating, a lack of RAM or application background activity).

Alternative ways to free up memory on Xiaomi

If debug log isn’t the only problem and your Xiaomi memory is running out, here are some more effective methods:

• 🗑️ Cleaning the app cache: Go to Settings → Annexes → Application management, select any application and click "Clear cache." For mass cleaning, use Settings → Memory. → Cleanup.
• 📸 Remove Photo and Video Duplicates: Use the Gallery app (Dublicates section) or Google Files to find unnecessary copies.
• 🎵 Transfer media files to a memory card: If you have a microSD, transfer photos, videos and music to it through the file manager.
• 📱 Disabling Unnecessary System Applications: Some Preinstalled Applications MIUI (For example, Mi Music, Mi Video can be turned off: Go to Settings → Apps. Select the unnecessary app → "Shut down".

Use of cloud storage:

Upload rarely used files to Google Drive, Mi Cloud, or Yandex Disk.

If even after that memory is catastrophically lacking - consider resetting to factory settings or buying a smartphone with a large amount of storage.

FAQ: Frequent questions about debug log on Xiaomi