File. 1.log Android Xiaomi: causes, safe removal and prevention

Xiaomi smartphone owners often face a mysterious file 1.log, It suddenly appears in the root folder of internal memory, and it takes hundreds of megabytes -- and sometimes several gigabytes -- and it's not deleted by standard methods, it's not opened by conventional text editors, and it's often returned after it's been cleaned. MIUI/HyperOS, Why it occurs and how to get rid of it without harming the device?

Unlike temporary cache files or update residues, 1.log — These are the logs of the system processes that Xiaomi creates to diagnose the operation of the firmware, which under normal conditions should be automatically archived and sent to the company's servers (with the user's consent). However, due to failures, incorrect updates or conflicts with applications, logs begin to grow uncontrollably, clogging memory. MIUI 12.5–14 and the first versions of HyperOS, where the log management mechanism is not yet optimized.

In this article, we will discuss:

• 🔍 What is it? 1.log Why do you need it (spoiler: it’s not a virus!)
• ⚙️ The main reasons for the appearance – from firmware bugs to third-party applications
• 🗑️ How to delete a file without root rights and with them (Step-by-step instructions)
• 🛡️ Prevention: How to prevent recurrence
• ⚠️ What not to do when working with system logs

What is a file? 1.log And why is it coming to Xiaomi?

File. 1.log — This is a log of system events created by the logd service (Android Logger Daemon) that records the kernel, drivers, applications and services. MIUI. Ideally, these logs should:

• 📤 Automatically rotate (break into parts of 5-10 MB)
• 🔄 Archive and go to Xiaomi Cloud for analysis (if you have the option to Send Error Reports enabled)
• 🗑️ Remove after expiry of storage period (usually 7-30 days)

But in practice, the mechanism fails, and the file grows to a giant size, most often because of:

1. Firmware errors. Especially vulnerable devices on the MIUI 12.5–13 (e.g. Redmi Note 10 Pro, POCO X3 Pro, where the log bug was massive. HyperOS is less common, but not excluded in beta versions.

2. Application conflicts: Some programs (especially root access or modified ones) APK) They make the system write logs, and they often become the culprits:

• 🎮 Emulators (PPSSPP, Dolphin)
• 🔒 VPN-clients (1.1.1.1, ProtonVPN)
• 🛠️ Cleaning Tools (CCleaner, SD Maid)

3. Developer settings are incorrect if you have options like Don't turn off the screen or Log. HCI (Bluetooth, the system starts to record extra data.

Hardware problems: Rarely, but it happens that the failure is caused by memory damage (especially on budget models like Redmi). 9A). In this case, the logs are written in "broken" sectors, and the file becomes "unkillable".

💡 How do you check that 1.log — virus?

1. Open Settings → Applications → Application Management.
2. LogKit or System Log is the official Xiaomi service.
3. Check the file with an antivirus (such as Dr.Web or Malwarebytes) and it should show “clean.”

💡

If the file is not called 1.log, a. for example, error_log.txt Or dumpstate, it could be a crash, and then you can just reset to factory settings.

How to find a file 1.log Xiaomi: Ways and Ways

File. 1.log It is usually hidden in the root directory of internal memory, but its location may vary depending on the version. MIUI. That's where to find him:

🔎 How to find a file manually:

1. Open any file manager (Mi File Manager, Solid Explorer, FX File Explorer).
2. Enable the display of hidden files (in Mi File Manager: ⋮ → Settings → Show hidden files).
3. Go to the root folder (/storage/emulated/0/ or /sdcard/).
4. Look for the file. 1.log (may be called 1.log.old, 1.log.bak).

⚠️ Note: If the file is not visible but the memory is full, check the folders:

• 📁 /MIUI/debug_log/ — Here are the archive logs.
• 📁 /data/log/ — System Logs (access only with root).
• 📁 /cache/ — Temporary files that can also grow.

📊 How to check how much space it takes 1.log:

1. Go to Settings → About the phone → Memory.
2. Click on Other files or System data.
3. If there is a Logi or Debug item on the list >100MB is probably the culprit.

How to delete a file 1.log Rootless: 3 working methods

If you don't have root access, try these methods. They're safe and they don't require any special knowledge.

Method 1: File Manager with rights ADB

This method works for most Xiaomi devices with MIUI 13+ hyperos.

Install Platform Tools on PC|Turn on the debugging. USB phone-on|Connect your phone to your PC via cable|Run the command line in the folder with adb.exe

-->

1. Connect your phone to your PC and execute the command: Adb shell
2. Delete the file: rm /storage/emulated/0/1.log If the file is in another folder, specify the correct path (see table above).
3. Reboot the device: reboot

Method 2: Through Safe Mode

If a file is blocked by a third-party application, secure mode will help you remove it.

1. Press the power button, then hold your finger on Turn off until the Safe Mode window appears.
2. Confirm the reset.
3. In Safe Mode, open the file manager and delete 1.log.
4. Reboot back to normal mode.

Method 3: Through cache reset (does not delete user data)

This method cleans temporary files, including stuck logs.

1. Turn off the phone.
2. Press Volume Up + Power before the Mi logo appears.
3. From the Recovery menu, select Wipe Cache Partition (use volume buttons for navigation).
4. Confirm the action and restart.

⚠️ Note: If the file reappears within a day after deleting, the problem is deeper - it is most likely the firmware or a particular application is to blame. MIUI or manual removal through root.

Removal 1.log Root Rights: Radical Methods

If the standard methods didn't help, and the file continues to take up memory, you'll have to use root access. Attention: wrong actions with root can lead to a device "brick" - use the method only if you are confident in your abilities!

Method 1: Removal via Root Explorer

1. Install Root Explorer or FX File Explorer (with root option).

Method 2: Disabling the logging service

This is a radical step, after which some diagnostic functions will cease to work.

Method 3: Transfer logs to another location (for experienced)

If the file is needed for diagnosis, but interferes, it can be redirected:

1. Create a folder. /sdcard/Logs/.
2. Perform in ADB: ln -s /storage/emulated/0/1.log /sdcard/Logs/1.log
3. Now logs will be written to a new folder that can be cleaned without risk.

⚠️ Attention: After removal 1.log through root check the work:

• 📱 Wi-Fi and mobile network (logs can affect communication modules).
• 🔋 Battery charging (sometimes log failures block charge control).
• 🎵 Audio drivers also write logs).

If something stops working, restore the file from the backup or reset the settings.

💡

Removal 1.log Try all methods without superuser rights first, as improper actions with system files can lead to loss of warranty or failure of the phone.

How to prevent recurrence 1.log: prevention

To file 1.log You have not returned, follow these recommendations:

1. Update the firmware to the latest stable version

• 📱 Check for updates in Settings → The phone. → Updating the system.
• 🔄 If you're on beta. MIUI or HyperOS, roll back to stable (via Fastboot or Mi Flash Tool).

2. disable unnecessary logs

1. Go to Settings. → The phone. → Version. MIUI (Press 7 times to turn on Developer Mode).
2. Back to Settings → Additionally. → For developers.
3. Disconnect: Logistics HCI (Bluetooth) Debugging by USB (If not, do not save error logs.

3. Check applications

• 🛡️ Remove programs that request root or modify the system (emulators, VPN, cleaners).
• 🔍 B Settings → Annexes → Permissions check which applications have access to Warehouse and System Settings.

4. Set up automatic cleaning

Use Mi Security or Files by Google for regular cleaning:

1. Open Mi Security. → Cleanup → Deep cleaning.
2. Enable the Auto Clean option and add only the necessary folders to the exceptions.

5. Memory monitoring

Install DiskUsage or Storage Analyzer from Google Play. These apps show which files take up the most space and alert you to suspicious changes.

📌 HyperOS user tip: In the new firmware, Xiaomi has added the option of Optimizing Logs. Find it in Settings → Memory. → Add in and turn on.

Frequent mistakes when working with 1.log and how to avoid them

Many users make the problem worse by trying to remove it. 1.log That's not the right way to do it:

❌ Error 1: Delete via PC in mode MTP

If you connect the phone to a computer and try to delete the file through Windows Explorer, the system will return the error File used by another program. 1.log The logd process is blocked. Solution: use ADB or file manager with root.

❌ Mistake 2: Formatting memory

Some users are desperately formatting internal memory through Recovery, which results in the loss of all data, but does not guarantee that the file will not reappear.Solution: first try a cache reset (Wipe Cache), not a full formatting.

❌ Error 3: Using cleaners like Clean Master

Cleaning apps often cannot delete system logs, but they do delete useful files (like Google Play Services cache). MIUI or verified file managers.

❌ Error 4: Change access rights without root

Trying to change the file rights through chmod without root will result in a Permission denied error. ADB shell-like.

❌ Mistake 5: Ignoring the causes of the event

Delete 1.log — If you don't fix the cause (like a firmware bug or a conflict application), the file will come back. Solution: After you delete, monitor the system for 2-3 days and look for patterns (like a file appears after a particular game is launched).

💡

If after all the manipulations 1.log It keeps appearing, it's a signal of deep firmware problems, in which case only flashing through Fastboot or contacting Xiaomi's service center (if the device is warranted) will help).

FAQ: Answers to Frequent Questions About the File 1.log