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How to get system logs

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この記事では、システムレベルでお使いのデバイスを保護する多機能広告ブロッカー、「AdGuard for Android」について書いています。 To see how it works, firsthand download the AdGuard app

Sometimes a regular log may not be sufficient to identify the origin of the problem. In such cases a system log is needed. Below are instructions on how to collect and get it: via Developer options and Logcat.

Capture a bug report from a device

To get a bug report directly from your device, do the following:

  1. Be sure you have Developer options enabled.

  2. In Developer options, tap Take bug report.

    Bug report *mobile

  3. Select the type of bug report you want and tap Report.

    note

    After a moment, you will see a notification that the bug report is ready (see Figure 2).

:::

![Bug report *mobile](https://cdn.adtidy.org/public/Adguard/kb/newscreenshots/En/Android3.1/bugreporteen.png)
  1. To share the bug report, tap the notification.

    Bug report *mobile_border

  2. Send this log to our support team.

    note

    Our support team will process your ticket much faster if you specify the HelpDesk ticket number or the GitHub issue number in your message to support.

:::

Capture a bug report via Logcat

On devices with Android 7 and below, it is not possible to send a bug report automatically. Then you can capture it manually via Logcat — a standard Android command-line tool that dumps a log of system messages.

Follow this instruction:

Part #1: prepare the device

  1. Switch device to the developer mode. To do this: go to SettingsAbout → tap Build Number 7 times.

  2. Go to Developer Options.

  3. Enable USB debugging.

  4. Increase Logger buffer sizes to 4 MB per log buffer.

4 MB should be enough for storing the logs we need until you're able to do the second part (getting the log from the device);

Part #2: reproduce the problem

It is important to reproduce the problem after you're done with the first part.

  1. Reproduce the problem.

  2. Remember/write down the date and time of reproduction and include it in the email to our support later.

Part #3: get the log

  1. Connect your device to a PC with a USB cable.

  2. Download Android SDK Platform Tools. Choose the appropriate download link for your OS from the Downloads section. Once you tap the link, a ZIP file will be downloaded. You can extract the ADB (Android Debug Bridge) files from the ZIP file and store them wherever you want.

  3. Test whether ADB is working properly: connect your Android device to your computer using a USB cable, open the Command Prompt, PowerShell or Terminal and run the following command:

    adb devices

    An example of a successful result:

    Step 3

  4. Then run the following command (insert the relevant path):

    adb logcat -v threadtime -d > C:\Program Files\platform-tools\logs.txt

    Email the created txt file as well as the time the problem was reproduced (from part #2) to our support team at support@adguard.com.

Alternative way for ROOT users

  1. Download and run Logcat.

  2. Choose Record in the menu. Choose a name for a log file or just press OK. Now you can press Home button, CatLog will continue recording the log in background.

  3. Reproduce the issue.

  4. Open CatLog and press Stop record in the menu.

  5. Send this log to our support team.

note

Our support team will process your ticket much faster if you specify the HelpDesk ticket number or the GitHub issue number in your message to support.