Sysdump on Xiaomi: how to clean the memory of the phone from system dumps

What is sysdump on Xiaomi and why does it take up memory?

If you notice that your Xiaomi smartphone is running out of memory and you're running out of files with strange folders called sysdump or log, don't panic. It's not a virus or a system bug, but a standard debugging mechanism. Sysdump is a log archive that is automatically created when your firmware, applications or drivers fail, and its primary purpose is to help Xiaomi engineers diagnose problems if you report them through Mi Community or service center.

The problem is that these files can weigh anywhere from 100MB to a few GB, and they often accumulate invisibly. For example, after a Force Close app, a sudden reboot or a MIUI update, the system can create a new dump — and so on in a circle, and as a result, after a month or two, users find that there is critically little space left, although they did not add photos and videos, especially for low-end Redmi models with 32-64 GB of memory, where every megabyte counts.

It's important to understand that removing sysdump doesn't affect the stability of your phone, but it can make it harder to diagnose problems if you're planning to call for support. If your smartphone is working properly, you can clean those files. Then we'll look at how to find them, what tools to use to do this, and what to do if dumps come back.

Where are sysdump files stored on Xiaomi?

System dumps are usually hidden in service folders that don't show up in the standard file manager, and their location depends on the MIUI version and the smartphone model, but most often the path is as follows:

• 📁 /sdcard/MIUI/debug_log/ — main folder for logs in modern versions of firmware (MIUI 12–14).
• 📁 /sdcard/log/ — Alternative storage, especially on older devices (Redmi Note) 4/5, Mi A1).
• 📁 /sdcard/Download/sysdump/ — Sometimes dumps are saved here after manually collecting reports through the engineering menu.
• 📁 /data/log/ — System partition (available only with root rights).

To see these folders, you’ll need a file manager with access to hidden files, such as:

• 🔍 Mi File Explorer (built-in) MIUI, But you need to enable the display of hidden folders in the settings).
• 🔍 Solid Explorer or Solid Explorer FX File Explorer (require permissions to access root folders).
• 🔍 Root Explorer (for root-righted devices only).

If you can't see the folder debug_log or log, try connecting your smartphone to your PC and use Windows Explorer (with the option "Show Hidden Files" enabled). ADB:

adb shell ls /sdcard/MIUI/debug_log/

How to remove sysdump manually: step-by-step instructions

The most reliable way to free up memory is to remove the dumps manually, which works on all Xiaomi, Redmi and POCO models without root rights.

1. Open the file manager (e.g. Mi File Explorer) and go to the root directory (/sdcard/).
2. Turn on the display of hidden folders: click on three dots in the upper right corner → Settings → Show hidden files.
3. Cross the path. MIUI → debug_log (or log if the first folder is not).
4. Select all files with the.zip,.tar extension or names like sysdump_20260515 (date).
5. Click Delete and confirm the action. If the files are not deleted, try restarting the phone and trying again.

If the folder debug_log empty, but the memory is still busy, check the other locations:

• 📂 Download folder – sometimes dumps are saved there after manually collecting reports.
• 📂 folder Android/data/com.miui.bugreport/ — There may be temporary report files here.

⚠️ Note: Do not delete files in the folder /data/log/ It can cause a system malfunction, and if you're not sure if the folder is sysdump, you'd better skip it.

Automatic cleaning of sysdump: applications and scripts

If dumps are regularly produced, manual removal can be tedious, with specialized utilities or automatic scripts helping, and consider the proven options:

1. SD Maid App (requires root rights)

SD Maid is one of the most powerful garbage cleaners on Android, and it can find and remove system dumps, cache, residual files and duplicates to clean up sysdump:

1. Install SD Maid from Google Play or official website.
2. Launch the application and provide root access.
3. Go to CorpseFinder → click Scan.
4. In the results, find files with the names sysdump, bugreport, or logcat.
5. Select them and press Remove.

2. Script for Tasker (no root)

If you don't have root rights, but you have Tasker, you can create a problem to automatically remove dumps.

A1: List Files [ Dir:/sdcard/MIUI/debug_log/ Match:*.zip Include Hidden Files:On ]


A2: For [ Variable:%ef(1) Items:%ef() ]




A3: Delete File [ File:%ef(1) ]




A4: End For

This script will delete everything. ZIP-file-box debug_log. You can run it manually or on a schedule (for example, once a week).

3. ADB-Teams for Advanced Users

If you are familiar with ADB, you can remove dumps with one command:

adb shell rm -rf /sdcard/MIUI/debug_log/*.zip

For mass deletion of logs from several folders:

adb shell rm -rf /sdcard/MIUI/debug_log/ /sdcard/log/ /sdcard/Download/sysdump/*

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Before using SD Maid or ADB, back up important data. A command error or incorrect application settings can lead to the deletion of the desired files.

Why does sysdump appear again and how to stop it?

If the dumps come back after a few days, it means that the system continues to fix the failures.

• 🔄 Unstable applications: Some programs (especially modified or pirated) cause Force Close, which causes dumps to be created.
• 🔄 Firmware errors: bugs in MIUI or custom assemblies can lead to frequent reboots.
• 🔄 Automatic reporting: in settings MIUI Diagnostic data collection may be included.
• 🔄 Iron problems: malfunctions of the memory module, battery or motherboard are also recorded in logs.

To reduce the amount of sysdump, follow the following steps:

1. Turn off automatic reporting: Go to Settings → About Phone → Reviews and Analytics and deactivate the Send Error Reports and Improve MIUI options.
2. Update your firmware: check for updates in Settings → System Update. Often bugs are fixed in newer versions of MIUI.
3. Remove problem applications: sort programs by crash rate into Settings → Applications → Application Management.
4. Reset to factory settings: If dumps appear too often, perform soft reset (without deleting data) through Settings → Additional → Recovery and Reset.

⚠️ Note: If sysdump is created daily and the phone is often rebooted or warmed, this may indicate a hardware malfunction, in which case cleaning the logs will not help - you need a diagnosis at the service center.

Cleaning sysdump on Xiaomi without a computer: alternative ways

Not everyone has a PC for ADB or root access on hand, and luckily there are ways to remove dumps directly from your smartphone:

1.Using the engineering menu (#4636##)

In some MIUI firmware, you can manually collect and delete reports:

1. Open the Phone app and enter the code ##4636##.
2. Go to the Usage statistics section.
3. Click Clear Logs (Clear Logs)

This method doesn’t work on all models, but it can help remove temporary logs.

2.Used by Mi PC Suite

Official Mi utility PC Suite allows you to manage smartphone files through USB-connection:

1. Download and install Mi PC Suite from the official website.
2. Connect your phone to your PC and allow access to the data.
3. In the program, go to the Files section. → find the folder MIUI/debug_log.
4. Remove unnecessary files directly from the utility interface.

3. via Google Files (Files by Google)

Google Files can find and offer to delete large unnecessary files:

1. Install Files by Google from the Play Market.
2. Open the Cleanup section.
3. Select the category Large files or Other files.
4. Find files with the names sysdump or bugreport and delete them.

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If you are not sure which file is sysdump, check its extension: usually.zip,.tar or.log. Do not delete files with.db or.xml extensions - they may belong to other system processes.

What to do if sysdump is not removed?

Sometimes sysdump files can be locked by the system or taken up by another process. If standard methods don't work, try the following solutions:

• 🔓 Restart your phone in Safe Mode: Press the power button → long-tail → Safe Mode. In this mode, remove dumps through the file manager.
• 🔓 Use a different file manager: some applications (e.g, FX File Explorer has extended deletion rights.
• 🔓 Turn off the debugging. USB: If dumps are created when you connect to a PC, disable the option for developers → Debugging by USB.
• 🔓 Reset application permissions: go to Settings → Annexes → Permit management → Resetting permits.

If files are still not deleted, the reason may be:

• 🛑 Damaged file system: in this case, only resetting to factory settings will help.
• 🛑 Virus or malware: scan your phone through Malwarebytes or Dr.Web.
• 🛑 Limitations MIUI: On some devices (for example, Xiaomi 13 Pro) system folders are protected from changes.

⚠️ Note: If after removing sysdump, the phone starts to work unstable (for example, settings begin to disappear or applications crash), restore the backup or perform a factory reset. This is unlikely, but possible when removing critical logs.

FAQ: Frequent questions about sysdump on Xiaomi