How to enable debugging by USB on Xiaomi Redmi Note 4: step-by-step instructions

Xiaomi Redmi Note 4 remains a popular device even years after its release, attracting enthusiasts with the possibility of deep customization of the system. One of the key tools for the advanced user is the USB debugging mode, which opens access to hidden Android functions. Without activating this parameter, it is impossible to establish a connection between the phone and the computer to transfer system commands via ADB (Android Debug Bridge).

Enabling this feature is not only necessary for application developers, but also for ordinary users who want to unlock the bootloader, get root rights or make a full backup of the system. The activation process on the MIUI shell has its own features that differ from standard Android. In this article, we will analyze in detail each step necessary to properly configure the connection and solve the typical problems that arise when connecting to a PC.

Why you need USB debugging and developer mode

The USB debugging feature is a gateway to allowing the computer to interact with the smartphone operating system at a low level.This allows you to transfer commands directly to the Android kernel, bypassing the standard user interface. For owners of Redmi Note 4, this is often the first step to install custom firmware such as LineageOS or Pixel Experience, which can significantly upgrade the device.

This is also critical to the removal of FRP-Google Account Protection is a security solution, but it requires caution, and tools like Mi Unlock or Mi Flash Tool can help restore the system to work after a failed update. Without debugging enabled, these programs simply won’t see the connected device in the appropriate mode of operation.

⚠️ Attention: Enabling the developer mode and debugging by USB Do not connect your Redmi Note 4 to unknown or suspicious computers, as attackers may gain access to your data.

It's also worth mentioning that this interface allows you to take screenshots from a computer, broadcast a real-time image, and even control your phone with your keyboard and your PC mouse, making your smartphone a convenient tool for presentations or games. However, remember that the constant activation of this feature increases the risk of accidental changes in system settings for inexperienced users.

Activate the developer menu on Redmi Note 4

By default, the hidden developer menu on Xiaomi devices is closed to prevent accidental system breakdown by beginners. To access it, you need to perform several sequential actions in the settings. First, open the main app menu and find the Settings icon, which usually looks like a gear.

In the settings list that opens, scroll down to About Phone, and it contains all the technical information about your device, and find the MIUI version line, which is the one you need to click on quickly several times in a row, and it usually takes 7 to 10 taps.

After a few clicks, a pop-up notification with a countdown will appear on the screen, such as: “4 steps left to turn on the developer mode.” Continue to click until you see the message “You are a developer!”. If the system requests the input of a pattern lock or a screen unlock password, enter it to confirm the actions.

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If after 10 clicks the menu did not appear, try to click faster or, conversely, make small pauses between clicks - the Redmi Note 4 touch screen can react differently to multi-touch.

Now that you're open, go back to the main settings menu. Scroll down to the Advanced Settings section. Inside, you'll find a new item, Developer's, that's where all the switches you need to debug and fine-tune the processor and memory are.

Configure debugging parameters and connect to the PC

Once you log into the developer menu, you'll see a long list of options. Find the USB Debugging option and switch to the active position. The system will immediately issue a warning about the risks associated with this feature. Press OK to confirm.

When you first connect the cable to the computer, a dialog box will appear on the smartphone screen asking for debugging permission. RSA-Make sure to check the "Always allow from this computer" box so that you don't have to confirm it every time you do it again.

For stable operation, it is also recommended to check the default USB mode settings. In the same developer menu, find the default USB configuration and select File Transfer (MTP) to ensure that the device is correctly identified in Windows Explorer.

It is important to note that in some versions MIUI You may need to include an additional option. USB-Debugging (Security settings) If your computer still can't see your phone after you turn on the basic debugging, look for this sub-item in the developer menu and activate it.

Install ADB drivers and solve Windows problems

Even if the settings are correct on a smartphone, a Windows computer may not recognize the Redmi Note 4 without drivers installed. The operating system often installs a driver only for charging, ignoring debugging mode. To solve this problem, you need to download the ADB Driver Installer package or official drivers from the Xiaomi site.

Once you install the drivers, connect your phone to your PC with a cable. Open Device Manager (you can search the Start menu). The hardware list should show a device called Android ADB Interface or similar. If you see "Unknown Device" or a device with a yellow exclamation mark, the drivers are not installed correctly.

In case of problems, try using another one. USB-port, preferably located on the back of the system unit, directly on the motherboard. USB-Hubs may not give enough voltage or have poor contact to transmit data.

⚠️ Note: When installing drivers, disable the antivirus for installation time, as some system drivers may be mistaken for a threat and blocked.

Using ADB commands for Redmi Note 4

Once you've successfully installed the connection, you can move to practical use. To work with the command line, you'll need a folder with Platform-tools tools. Open the command prompt (CMD) or PowerShell in this folder. Enter the adb device command and press Enter.

If everything is configured correctly, the terminal window will display a list of connected devices with a unique serial number and device status. RSA-The offline status indicates connection or driver problems.

To check the model of the device, you can use the command:

adb shell getprop ro.product.model

This command will return the exact code name of the model, such as mido (for the Redmi Note 4 Snapdragon) or nikel (for the MediaTek version), knowing the exact code of the model is critical when searching for firmware, since firmware from one version can completely disable another.

Frequent errors and methods of their elimination

One common problem with MIUI is that it automatically disables debugging when you lock the screen or after a certain time. To avoid disconnecting the connection during long-term operations, find the item Do not turn off the screen (or "Stay awake") on the developer menu when you connect to charge, which will prevent the phone from going to sleep.

Users often face a situation where the confirmation window RSA-In this case, try to clear the Settings app data (don't worry, it won't affect personal data, it will only reset the system settings). → Annexes → All applications → Settings → Memory. → Clean up.

If the computer sees the phone but can't establish a connection, check if Charge Only is on in the notification curtain when the cable is connected. USB and select the file transfer mode or PTP. Sometimes switching between these modes will cause" ADB-interface.

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The main secret of success is to use the original cable and check the status of “device” in the command line before starting any firmware operations.