If your Xiaomi smartphone starts to slow down, spontaneously restart or give out errors in the application, the first recommendation of technical support is to collect problem logs. What exactly is logged, is it safe for personal data, and why you can't diagnose a malfunction without these files? In this article, we'll look at how to collect problem logs on Xiaomi, Redmi and other devices. POCO, Why does the manufacturer need it, and how to start the process so as not to lose critical data.
Many people mistakenly think that collecting logs is a way to βsurveyβ a user or access personal information. In fact, problem logs contain only technical data: records of system failures, application errors, processor overheating, sensors and other hardware components that help Xiaomi engineers identify the cause of the problem β whether it is a software bug, driver conflict or hardware defect. Without them, support will not be able to offer a solution, except to βresetβ or βtake to the serviceβ.
It's important to understand that logging is not a one-time operation. Depending on the nature of the problem, it may take hours or even days to log log log log log log logging. For example, if a Redmi Note 12 accidentally reboots once a day, you'll have to wait until the error recurs to log it. In this article, we'll explain how to prepare the device, start collecting data, and properly export it to support.
What are problem logs and what data do they contain
Problem logs (or error logs) are files that a system has MIUI Recording information about the device in real time, and they're divided into several types:
- π± System logs β data on OS boot, kernel, drivers, and mission-critical processes. Records failures when you turn on, interface freezes, memory errors.
- π Application logs β records of crashes, incorrect permissions, conflicts between services. For example, if Google Play is permanently shut down, the problem will be visible here.
- π Hardware logs - data from sensors (accelerometer, gyroscope, NFC), information about charging, processor temperature, operation of communication modules (Wi-Fi, Bluetooth, GPS).
- π‘ Network logs β records of mobile connections, roaming, signal quality, relevant for Internet or call problems.
Important: logs do not contain your photos, messages, passwords or browser history, but they may include:
- π Phone numbers you recently called (to diagnose communication problems).
- π Coordinators GPS (If the problem is related to geolocation).
- πΆ Names of connected Wi-Fi networks (for analysis of Internet problems).
This data is used exclusively for diagnostics and is not shared with third parties. If you fear a leak, you can delete files or disable the function after collecting logs.
Why Xiaomi is asking to collect problem logs
The main reason Xiaomi supports magazines is that you can't reproduce the problem on your hardware. POCO X5 Pro overheats when playing Genshin Impact, engineers will not be able to repeat this on a test device without knowing the exact conditions: game versions, graphics settings, ambient temperature, etc. Logs contain all this information in a structured form.
Here are the cases when collecting journals is mandatory:
- π Spontaneous reboots β without logs, it is impossible to determine whether a hardware defect (such as a faulty battery) or a software failure is to blame.
- π’ Slowdown β Journals will show which process is loading CPU, and whether it is related to background applications or system services.
- π΅ Communication problems β if the smartphone does not catch the network or loses the signal, logs will help to determine whether the communication module or firmware is to blame.
- π Fast battery discharge β logs will show which component (screen, processor, module) 5G) consumes the most energy.
Without this data, support can only offer standard solutions:
β οΈ Note: If you go to a Xiaomi service center without logs, you will be asked to reset or reflash your device 90%, which may help, but if the problem is hardware (e.g., battery plume) it will come back after the reset. Logs help to avoid unnecessary manipulation.
In addition, problem logs are used to:
- π Error statistics β Xiaomi analyzes mass crashes to release patches in next updates.
- π§ Beta testing β users MIUI Beta must send logs when bugs are detected.
- π οΈ Warranty repair β if the defect is hardware, logs will be proof that the problem arose through no fault of the user.
How to Prepare a Device Before Collecting Journals
Before you start collecting data, you need to follow several steps to make the logs as useful as possible for diagnosis:
Enable the developer mode
Disable battery optimization for system applications
Repeat the problem (if it is not permanent)
Charge the device at least 50%
Release. 1-2 GB of memory for logs-->
Let's take a closer look at each item:
- Enabling Developer Mode Go to Settings β The phone. β Version. MIUI And tap this 7 times. Once you've become a developer, go back to the main settings menu, and a new developer section will appear.
- Disabling Battery Optimization Go to Settings β Annexes β Application management β Three dots (menu) β Special access β Battery optimization. Search Log Collector and select No LimitationsΒ».
- If the error does not always appear (for example, the smartphone is rebooted once a day), wait for it to repeat after collecting logs. Otherwise, there will be no records of the failure in the files.
- Collecting logs consumes additional energy, and if the device runs out during recording, the data may be lost.
- Logs take up between 50MB and 1GB of free space depending on the recording time. Make room in advance to avoid interruption of the process.
It is also recommended that:
- π΅ Shut down. VPN β It can interfere with the log records of network logs.
- π Update the firmware β if the problem is caused by a known bug, it could be fixed in the latest version MIUI.
- π± Remove unnecessary applications β they can create background noise in logs, making analysis more difficult.
β οΈ Note: If the problem is security-related (e.g., your smartphone is locked after a failed bootloader unlock), collecting logs may not be possible.
Step-by-step: how to enable collection of magazines on Xiaomi
The process of starting the collection of logs is the same for most Xiaomi, Redmi and other devices. POCO base MIUI 12-14 Instructions for other versions may vary slightly.
- Open βJournal Collectorβ Go to Settings β For developers β Journal Collector (or Settings) β Additionally. β Journal collector on some models).
- Configure the write settings Turn on the switch Collect logs and select data types: π± System Logs β Necessarily. π Application Logs β if the problem is in the work of the programs. π‘ Network Logs β in case of problems with the Internet or calls.
Launch the recording.
Click Start and confirm the action. A notification will appear on the screen to start collecting data.
Reproduce the problem
If the error is not permanent (e.g., an application crashes), follow the steps that cause it. If the problem is accidental (e.g., spontaneous reboot), just use the device as normal.
Stop the recording.
After a failure occurs or after 12β24 hours (if the problem does not play out), return to the Log Collector and click Stop.
Save the files.
The system will suggest exporting logs to the file. Select the.zip format and save the archive to a convenient location (for example, in Downloads).
Example of the way to collect magazines on different versions MIUI:
| MIUI version | The Way to the Magazine Collector | Notes |
|---|---|---|
| MIUI 12β12.5 | Settings β Additionally. β Journal collector | Some models may be in the settings β System and device |
| MIUI 13 | Settings β For developers β Journal collector | It is necessary to pre-enable the developer mode |
| MIUI 14 | Settings β The phone. β All parameters. β Journal collector | Nana POCO It may be called the Debugging Journals. |
| HyperOS | Settings β Additionally. β System logs | New name for HyperOS devices (2026) |
If you donβt find the Collector of Journals item, check out:
- π Is the developer mode enabled (see section above).
- π± Is the firmware updated to the latest version.
- π Is not the item hidden in the search by settings (the icon of the magnifier at the top of the screen).
π‘
If log collection is interrupted due to memory shortage, try reducing the log depth in the collector settings. For example, choose 6 or 12 hours instead of 24 hours.
How to Stop Collecting and Export Logistics
Stopping logs is a critical step, and if you do it wrong, files may be damaged or incomplete.
- If the error has already occurred (for example, the smartphone has rebooted), you can stop the recording. If the problem does not play, wait at least 30 to 60 minutes - logs should contain records of the normal operation of the system for comparison.
- Stop collecting Return to Log Collector and click Stop. Don't use the Back button or swipe to close the application - this can interrupt the process.
- The system will offer to save logs in.zip format. Select a folder with sufficient space (Downloads or root directory are recommended).
- Open the file through any archiver (e.g. ZArchiver) and there should be folders with names like bugreport, logcat, dmesg. If the archive is empty or weighs less than 10 MB, the collection failed.
Common mistakes in export:
- β Interrupting the process β if the charger is removed or the smartphone overheated, the logs may not be saved.
- β Not enough space β if the device has less than 500 MB of free space, the system will not create an archive.
- β Collection without problem β if the error did not play during the recording, the logs will be useless for diagnosis.
After successful export:
- π€ Please submit the archive in support via the official channel (see the following section).
- ποΈ Remove logs from your device if they are no longer needed (take up space and may contain sensitive data).
- π Return Battery Optimization Settings for System Applications to Original State.
What to do if the collection of magazines is suspended?
Where and how to send collected journals
The resulting log archive is useless unless it is handed over to Xiaomi specialists.
| Support channel | How to send | Time limit for response |
|---|---|---|
| Official Xiaomi Forum | Section βTechnical supportΒ» β Create a topic with a description of the problem and attach an archive | 2 days to 1 week |
| Chat at Mi Community. | Write to the support chat (available in the app) and send the file on request | 24-48 hours |
| Send a letter to support@xiaomi.com with the theme βError Logs [device model]Β» | 3-5 days | |
| Service centre | Download the logs to the flash drive and pass on when you visit (specify in advance whether they are needed) | Depends on the center load. |
When sending, be sure to indicate:
- π± Device model (e.g. Redmi Note 11 Pro)+ 5G).
- π’ Version MIUI (find out in Settings β The phone. β Version. MIUI).
- π Detailed description of the problem (when it appeared, how often it is repeated, in what actions).
- π Date and time of failure (so engineers can find the log entry).
Examples of correct and incorrect description:
β Right: Smartphone POCO F5 on MIUI 14.0.3 accidentally reboots 2-3 times a day, usually when watching YouTube videos. Last time it happened today at 15:30.Β» β Incorrect: βPhone is bugging, helpβ (without model, software version, error descriptions and time).
If support has requested additional data:
- πΈ Error Screenshots β Take a screen photo with a crash message.
- π₯ Video problems β if the error is visual (e.g. artifacts on screen).
- π Check of purchase - if the device is guaranteed.
π‘
Never send logs through third-party services (e.g. Telegram or VKontakte) and use only official Xiaomi channels to avoid data leakage.
Frequent Mistakes and How to Avoid Them
Even experienced users make mistakes when collecting logs, which leads to a failure of support in diagnosis, and here are the most common mistakes and ways to prevent them:
| Mistake. | Effects of consequences | How to avoid |
|---|---|---|
| Collecting logs without reproducing the problem | The files do not contain records of the failure. β Support will not help. | Wait for the error to happen again or force it to happen. |
| Interrupted recording due to battery discharge | Logs are damaged or lost | Charge the device to 100% before collection begins |
| Use of the VPN firewall | Network logs will be incomplete or distorted | Turn it off. VPN and antiviruses before collection |
| Removal of logs prior to sending in support | We'll have to reassemble. | Save your archive to the cloud (Google Drive) immediately after export |
| Sending logs through messengers | Risk of data leakage, support will not accept files | Use only official Xiaomi channels |
Additional nuances:
- π Do not update the firmware after collecting logs if the problem is not solved.New version MIUI can erase traces of error.
- π± Do not reset the settings before analyzing the logs with support β this will delete important data.
- β³ Don't wait for an instant response. Log analysis can take up to 7 days, especially if the problem is complex.
If support has requested additional logs (such as kernel logs or radio logs), follow their instructions. ADB and require a connection to a computer.
π‘
If you get a response from support in Chinese, use Google Translate with text scanning, often with instructions to fix the problem.