Xiaomi’s mobile devices have long since ceased to be just phone calls and have become powerful multimedia centers that require fine-tuning. Many advanced users are eager to access hidden MIUI or HyperOS features to install custom recavators, make a full data backup or remove system debris. The key to these features is activating a special mode in the Android system that allows the computer to interact directly with the phone.
The activation process doesn't require root rights at the beginning, but it does involve a strict sequence of actions in the settings menu. USB debugging is a tool that developers have created to test applications, but it has become an indispensable tool for enthusiasts who are engaged in firmware modification. Without this feature, you will not be able to use adb or fastboot commands to control the device via PC.
In this guide, we will take a detailed look at each step needed to activate the developer mode on modern Redmi, Poco and Mi models. You will learn about the nuances of the MIUI interface, which often confuse beginners, and understand how to properly connect the smartphone to the computer for further work.
What is USB Debugging and Why You Need It
Function USB Debugging (debugging by USB) It opens a link between the Android operating system and the computer, allowing you to send commands directly to the core, and it's a fundamental tool for application developers to track errors in code in real time, but it's much more powerful. For the average user, activating this mode means gaining access to file system management, installing applications bypassing standard restrictions, and in-depth diagnostics.
Using the Android Debug Bridge interface, ADB allows you to perform many useful operations that are not possible in standard phone mode, for example, you can remove embedded applications that the manufacturer does not allow you to remove in the usual way, or take screenshots of the entire screen from the computer, and this mode is critical for unlocking the bootloader, which is the first step to install custom firmware.
It is worth noting that enabling this option reduces the overall level of security of the device, as it opens the ports for external control. When connecting to someone else's computer or public charger, always turn off debugging mode to prevent unauthorized access to your data. If you do not plan to carry out technical manipulations right now, it is better to keep this feature off.
- 🔧 Installation of custom recaveri (TWRP, OrangeFox) and flashing the device.
- 📂 System Files Management and Access to Hidden Memory Partitions.
- 🚫 Removing system debris and embedded advertising MIUI.
- 📲 Install applications from third-party sources without security restrictions.
Preparing a smartphone and computer for work
Before you go to the menu settings, you need to make sure that your equipment is ready to interact. USB-cable, preferably original or certified, as cheap counterparts often only support charging and do not transmit data.The computer must have installed drivers for Android devices, which are often installed along with platform tools.
On the smartphone side, you also need to do pre-training to avoid locking up by Xiaomi’s security system.Make sure the device is on the internet, as some steps require checking your Mi Account in real time.It is also recommended to charge the battery to at least 50% so that a sudden shutdown does not interrupt the setup process.
An important aspect is choosing the right connection mode when you first connect to a PC. By default, the phone can go into "Charge Only" mode, which makes it impossible to exchange data. You will need to switch this option yourself in the notification that will appear after you connect the cable.
☑️ Preparation for debugging
Check that your computer has the necessary platform components installed. To work with the command line, you will need a platform-tools package that can be downloaded from the official Android developer site. Without this set of utilities, the computer will simply not understand the commands sent from the phone, even if debugging is enabled.
How to activate the developer mode on MIUI
The first and most important step is to activate the hidden Developer Menu, which is hidden by default from the eyes of the average user. In the shell of MIUI and the new HyperOS, this process has its own features, different from pure Android. You need to go to the About Phone section, which contains technical information about the device.
Find a line called "Version". MIUI" or "Version." OS" And you can start to press your finger quickly. 7-10 And then the system will give you a notification that the developer mode is activated, and if you tap too slowly, the meter will reset, and you have to start over.
Once activated successfully, the new "Developers" option will appear in the main settings menu, "More" section. This is where all the tools for advanced system configuration are concentrated. Don't be afraid to go into this menu, but be careful about changing the parameters, the value of which you do not know.
- 📱 Go to Settings. → The phone.
- 👆 Press quickly. 7-10 once-on-item "Version" MIUI".
- ✅ Wait for the message, You became a developer!".
- 🔍 Find a new section in the menu "Additional settings".
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If nothing happens after multiple taps, check if Screen Time or parental controls are enabled, which can block changes to system settings.
Enabling USB debugging and authorization settings
Once you've been to the Developer menu, scroll down to the Debugging section. There's the USB Debugging switch. Before you turn it on, the system will show a warning about the risks associated with using this feature. You need to agree to the terms to activate the switch.
Xiaomi's interface features a security timer. Once debugging is enabled, the system may require you to confirm the action after 10 seconds, during which the button will be inactive, this is done to protect against accidental malware activation, and you may also need to re-confirm through the unlock password of the screen.
When you first connect to a computer with debugging enabled, a dialog window will appear on the smartphone screen USB?". It'll be displayed. RSA-You have to tick "Always allow this computer" and press "OK." Without this confirmation, the computer will not be able to execute any commands.
| Parameter | Default value | Recommended value | Description |
|---|---|---|---|
| USB debugging | Off | On | Basic for PC communication |
| USB configuration | Just charging. | File Transfer (MTP) | Port operation mode when connecting |
| Wi-Fi debugging | Off | Off | Wireless debugging (requires USB enabled) |
| Selective emulation | Not selected. | Not selected. | To test the interfaces of different versions of Android |
Solving Typical Connection Problems and Errors
Often, users are faced with a situation where the phone is connected, debugging is enabled, but the computer does not see the device or writes "Device unauthorized." First of all, check the cable - replace it with a knowingly working one and try another. USB-port, preferably USB 2.0, since with USB 3.0 Driver conflicts sometimes occur.
If Windows Device Manager identifies your device as "Unknown Device" or "MTP USB Device" with an error, you need to manually update the driver. Select "Android ADB Interface" from the list or install the universal Google USB Driver. On macOS and Linux, drivers are usually built into the system, but you may need to configure access rights through the terminal.
⚠️ Note: If the computer requests the installation of drivers for "Mi Phone" or"QHSUSB_BULK", Do not agree to install unverified software from unknown sites. Use only official tools from Google or Xiaomi.
Another common problem is the constant request for confirmation. RSA-This can happen if you don't tick "Always Allow" or if you reset your authorization settings. You can find "Cancel Debugging Access" on the developer menu. USB", Resets all previously authorized computers, after which you need to reconfirm access.
In some cases, an antivirus or firewall on your computer may block the ADB connection. Try temporarily disabling the security software or adding an exception to the adb.exe process. Also make sure that the phone itself does not have antivirus apps that can block debugging connections.
What if the phone goes into an endless reboot when connected?
Security and additional debugging settings
Using debugging mode opens up opportunities, but also creates potential vulnerabilities. An attacker who gains physical access to an unlocked phone with debugging enabled can copy all data or install malware. So never leave your phone unattended in public areas with active developer mode.
The debugging settings menu has a function called "Confirm installation via USB." If it is enabled, the system will require your intervention to install any application via ADB. For the average user, it is better to keep this option on to prevent hidden installation of programs. However, to automate processes (scripts) it is often disabled.
There's also the option, "Select a Wi-Fi debugging app," which allows you to debug your devices wirelessly, which is convenient, but requires that your phone and your computer be on the same Wi-Fi network. Remember, airborne data is less secure than cable, especially on open networks.
- 🔒 Always use a strong screen lock password.
- 🚫 Turn off debugging when you are not actively using it.
- 👁️ Do not confirm requests RSA-keyboards on unfamiliar PCs.
- 📡 Avoid using Wi-Fi debugging on public networks.
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Debugging mode is a powerful tool that should only be on during maintenance work, and constant activation increases security risks.
For maximum security, you can set a rule to automatically shut down USB debugging when you lock the screen or after a certain time. While this is difficult to do with standard MIUI tools, there are third-party macro applications that can track the state of USB and switch settings.