Xiaomi Problem Logs: What It Is and How to Collect Error Logs

Why Xiaomi is asking to collect problem logs?

Have you ever encountered a situation where Xiaomi support asks for "problem logs" or "error logs"? It is not a whim of the service center - without this data, specialists will not be able to accurately diagnose a malfunction of your device. Collecting logs allows you to record system failures, application errors, problems with hardware or software modules at the very moment they occur.

Unlike a typical error screenshot, the logs contain detailed technical information about the device’s state over the last hours of operation, from the temperature of the processor to the list of running processes, which is like the black box of an airplane, but for your smartphone or Xiaomi smart device. Without this data, engineers are forced to guess what went wrong, and this increases the time of repairs in the future. 2-3 once.

It's important to understand that log collection is not a magic button, it's a tool for professionals. Improperly assembled or incomplete logs can only confuse specialists. In this article, we'll look at how to collect logs correctly so that technical support can quickly help with the problem.

What are the problem logs (error logs) in Xiaomi devices

Log files are automatically generated files that record everything that happens in a device, from application launches to critical crashes. There are several types of logs in Xiaomi devices:

• 📱 System Logs – Record the actions of the OS MIUI/HyperOS, Linux kernels, drivers and services contain information about booting, turning off, overheating, memory errors.
• 🤖 Application Logs – fix the crashes of programs, errors API, Permit problems are especially important for bug diagnosis in branded services (Mi Home, Mi Fit, Xiaomi Cloud).
• 🔧 Hardware logs - data from sensors (accelerometer, gyroscope, NFC), communication modules (Wi-Fi, Bluetooth, GPS), It's a camera and battery that helps detect hardware problems".
• 🔄 Update logs – fix the process of installing firmware, errors during system upgrades, problems with recovery.

The feature of Xiaomi devices is the presence of two levels of logs:

1. User layer: limited logs that can be collected without root rights, available through standard menus.
2. Engineering layer – advanced logs that require activation of developer mode or special commands ADB. Used for deep diagnostics.

Xiaomi’s tech support typically requests both types, but it’s always a user-level option to start with – it’s enough for 80% of the time.

When to collect problem logs

You don't have to collect logs just in case, because it's meaninglessly taking up space in the memory of the device, and there are specific situations where you can't do without logs:

• 🔴 Critical glitches: the device suddenly restarts, turns off, hangs on the logo MI.
• 📵 Communication problems: It doesn't work Wi-Fi/Bluetooth/GPS, Networks go missing, errors SIM-map.
• 🔋 The battery is quickly discharged or the device does not charge (while the battery is serviceable).
• 🎮 Lags and brakes in games or interfaces, despite sufficient technical characteristics.
• 📸 Camera not working: artifacts in the photo, launch errors, black screen.
• 🔄 Update errors: firmware is not installed, the device gets stuck in recovery mode.
• 🛠️ Hardware malfunctions: buttons, touchscreen, speakers do not work (if the problem is not mechanical).

There are also cases when collecting logs is useless:

• 💥 Mechanical damage (cracked screen, liquid flooding).
• 🔌 Problems with charger or cable (check first with another accessory).
• 📱 Software bugs in third-party applications (contact their developers).

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If the problem is periodic (for example, the smartphone restarts once a day), turn on the collection of logs in advance and wait for the failure to happen again.

How to enable the collection of problem logs on Xiaomi smartphones

The process of activating the collection of logs depends on the firmware version (MIUI We'll look at a universal method that works on 90% of Xiaomi, Redmi and other devices. POCO:

Method 1: Through the "Feedback" menu (for MIUI)

1. Open the Settings app → The phone.
2. Tap 7 times on the MIUI version to activate the developer mode.
3. Return to the main settings menu and select Additional → Reviews.
4. Click Enable feedback collection and confirm the action.
5. Select the type of problem from the list (such as “Reboot” or “Battery”) and follow the instructions.

Method 2: BugReport (for HyperOS)

In the new HyperOS firmware, the process is simplified:

1. Go to Settings. → The phone. → Error reviews.
2. Select Collect Logs and specify the problem (e.g., "App Flying").
3. The system will automatically collect logs in the last 30 minutes and prompt them to send them to Xiaomi.

For devices without a graphical interface (for example, Mi Band smartwatches or Mi Router routers), log collection is carried out through Mi Home or Mi Home. ADB-We'll talk about this in the next section.

Enable the developer mode|Charge the device to at least 50%|Repeat the problem (if possible)|Connect to Wi-Fi to send logs|Record the time of the error-->

Where Collected Journals Are Stored and How to Retrieve Them

Once collected, logs are stored in the device's internal memory, and their location depends on the method of collection:

To extract the files:

1. Connect the device to the PC through USB (file transfer mode).
2. Follow the indicated path (see table) and copy the files.
3. If there is no folder, check if the hidden files are shown in the Explorer.

For devices without file system access (e.g. Mi Band or Mi Band) TV) Logs are extracted through special utilities:

• 📺 For Mi. TV: use ADB-Command: Adb pull /data/log/
• ⌚ For Mi Band: Logs are collected through the Mi Fit app (section "Reviews").

How to send magazines in support of Xiaomi

The logs collected are useless unless they are shared with the experts, and Xiaomi has several channels to send logs:

Method 1: Through the official support website

1. Go to the support page of Xiaomi.
2. Select the problem category (e.g., Smartphones" → "Redmi Note 12").
3. Press Contact Us. → Submit a Request.
4. Fill out the form, attach an archive with logs and describe the problem.

Method 2: Through the Appendix "Feedback"

If you have collected logs through the standard menu:

1. In the Appendix, click Send.
2. Choose Xiaomi Support as the recipient.
3. Add a comment describing the problem and send it.

Method 3: For smart home devices (Mi Home)

For gadgets like Mi Robot Vacuum or Mi Air Purifier:

1. Open Mi Home → Select the device → Settings → Reviews.
2. Click Collect magazines and wait until it is completed.
3. The system will automatically send data to Xiaomi.

Important: when sending, specify:

• 📌 Device model (e.g. Redmi Note 11 Pro)+ 5G).
• 🔢 Firmware build number (find in Settings) → The phone).
• ⏱️ Time of occurrence of the problem (exact date and hour).
• 📝 Step-by-step description of how to reproduce the bug.

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Never manually edit logs or delete files! Xiaomi support checks the integrity of archives. If the data is changed, your request may be ignored.

Extended collection of logs through ADB (power-user)

If standard methods didn’t help and the problem is complicated (such as bootloop or kernel errors), you’ll need to collect logs through the kernel. ADB (Android Debug Bridge. This gives you access to full system logs, including:

• 📊 Dmesg - kernel logs (critical iron errors).
• 📋 Logcat – Logistics of applications and systems.
• 🗃️ bugreport – full picture of the device status.

Instructions for Windows:

1. Download ADB Tools and unpack it into the C:\adb folder.
2. Enable USB Debugging on your device (Settings → Developer).
3. Connect your smartphone to your PC and run the command line in the adb folder.
4. Follow the commands: adb devices (should display your device) adb bugreport (collection of the full report, will take 1-3 minutes)

For devices with a damaged system (not included), use fastboot:

fastboot boot recovery.img


adb pull /tmp/recovery.log

Frequent errors in collecting logs and how to avoid them

Incorrectly collected logs can delay the diagnosis process, and here are common user errors:

⚠️ Note: If you collect logs after you restart the device, they will not contain information about the cause of the failure. Always turn on the record before playing the problem!

A few more nuances:

• 🔋 Do not collect logs with a discharged battery (<30%) — The device may be turned off during recording.
• 📶 Turn off battery optimization for the Reviews app (Settings) → Annexes → Permits).
• 🛠️ If you use ADB, Check the utility version (for new devices, platform-tools 34.0 are required).+).

⚠️ Note: Logs may contain confidential information (phone numbers, IMEI, Before sending to third-party services (not Xiaomi), delete personal data or use logcat --redact.

FAQ: Answers to Frequent Questions About Xiaomi Log Collection