Mobile device management goes far beyond the standard user interface, especially when it comes to advanced manipulation of the Android system. Owners of Xiaomi, Redmi and POCO smartphones often face the need to deep customize, install specialized applications or even obtain superuser rights, which is impossible without activating a special debugging protocol. Android Debug Bridge (ADB) is a versatile command-line tool that allows the computer to interact with the device at a low level, bypassing the standard limitations of the operating system.
Activating this mode opens the door to managing the file system, installing apps bypassing Google Play, removing system debris, and even restoring the device after software failures. However, the process of enabling debugging mode on the MIUI or HyperOS shell has its own peculiarities that distinguish it from pure Android.
In this article, we will take a closer look at each step of getting your smartphone ready for PC, learn how to properly activate the hidden developer menu, what security settings are critical to a successful connection, and how to avoid common driver and cable errors. No, no. No. USB-Debugging in the developer menu computer will not be able to recognize the smartphone as a debugging device, even if the cable is serviceable.
Preparation of equipment and software
Before you start setting up the software interface, you need to make sure that the equipment is physically ready. For a stable connection between the Xiaomi smartphone and the computer requires high-quality USB-The cheap cables that come with some accessories are often designed solely for charging and don't have internal lines to transmit the signal, making the connection ADB impossible.
In Windows, this is often a stumbling block, as standard drivers may not recognize the device in debugging mode. It is recommended to download and install the official Universal ADB Driver package or use tools from the Android SDK Platform-Tools.
⚠️ Attention: Use of damaged or too long USB-cables (over 1.5 meters) can cause unstable connection, breaks during command transfer and potential damage to the smartphone charging port due to voltage surges.
It’s also worth checking the version of the operating system on your device beforehand. In the latest versions of HyperOS and MIUI 14/15, security algorithms have been significantly strengthened, which requires additional confirmation when connecting. Make sure that the smartphone has enough free space and battery power, as the debugging process can consume resources, albeit slightly.
Activate the developer menu on MIUI and HyperOS
The first and mandatory step is to unlock the hidden settings section, known as For Developers. By default, this section is hidden so that inexperienced users do not accidentally change critical system settings, which could lead to unstable device operation.
You need to go to the basic settings of your smartphone and find the "About Phone" item, which contains all the technical information about the device, including the version of the processor, the amount of RAM and, most importantly for us, the build number, and it is from the build number that the system identifies the particular version of the firmware.
To activate the hidden menu, you need to quickly click on either MIUI Version or OS Version seven times in a row. You don't have to rush, but the rhythm of the taps must be sure. After the fifth or sixth press, the system can request a pattern lock or a screen unlock password to confirm the owner's actions.
- 📱 Open Settings and go to About Phone section.
- 🔨 Find the line Version MIUI (or OS) and quickly press it 7 times.
- 🔑 Enter the screen unlock password if the corresponding request appears.
- ✅ Wait for the pop-up notification “Now you’re a developer!».
Once these steps are successfully completed, the main settings menu, usually at the bottom of the list or in the “Additional” section, will see a new option “Additional settings” or immediately “For developers.” Now access to the advanced system functions is open, and you can proceed to the direct debugging setting.
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If nothing happens after seven taps, try changing the system language to English, activate it, and then return Russian, sometimes bypassing localization bugs.
Set-up of parameters USB-debugging
Getting into the developer menu is only half the battle, and there are a lot of options inside this section, most of which the average user doesn't need, but one of them is key. We need to find the USB debugging item and activate it. In the new versions of the HyperOS shell, this process is accompanied by a serious security risk warning.
The system will warn you several times that enabling this feature allows you to gain full access to your device data, which is a standard protection procedure designed to stop the actions of malicious users who could have physical access to your phone, you need to accept all the warnings, confirming your actions.
Special attention should be paid to the item “Debugging by USB (Security settings)”. In modern versions of MIUI, this subitem is often turned on by default and does not allow you to change the main debugging switch. It must be turned off to unlock the ability to turn on ADB. Without this step, the debugging by USB slider will return to the turned off state immediately after activation.
⚠️ Warning: Never leave debugging mode on permanently unless you're using it right now, which creates a potential vulnerability, especially when connecting your smartphone to public charging stations or other computers.
Once the core function is enabled, the system may request permission to install applications from unknown sources, which is necessary if you plan to transfer and install. APK-file ADB. Allow this action for the file manager or browser you plan to work through.
☑️ Checking the debugging settings
Authorization of the device on the computer
When the software on your smartphone is set up, there comes a moment of truth: connect to your computer. Connect your smartphone to your PC through a computer. USB-For the first time after debugging is enabled, a dialog box will appear on the phone screen asking "Allow debugging by USB?». This window displays a digital key (RSA-key) of the computer to which you are connecting.
To make a successful connection, you need to tick "Always allow from this computer" and click "OK." If you don't, you'll have to confirm the connection every time you change. USB-But be careful: only tick this box if you trust the computer completely.
If the authorization window doesn't appear, check the Device Manager on your computer. The device can appear as "Unknown Device" or "Android" with an exclamation mark. In this case, you need to manually install drivers. Also make sure that USB mode is set to File Transfer (MTP), although this is not always critical for ADB, but it is desirable.
To check the success of the connection, open the command line on your computer in the folder with ADB tools and enter the command:
adb devicesIf a device with a serial number and device status appears on the list, it means that the connection is successfully established. RSA-The offline status indicates problems with drivers or cable.
What to do if your computer can’t see your phone?
Use of wireless debugging (ADB over Wi-Fi)
Modern versions of Android and shell MIUI 12+ / HyperOS supports wireless debugging. It allows you to transmit commands. ADB useless USB-It's a cable that's much more convenient for long periods of operation or if the charging port is damaged, but the initial setup will still require a short-term cable connection or use. QR-code.
To activate this mode, go to the Developer Menu and find the Wireless Debugging option. Turn it on. The system will show you. IP-address and port, and will offer scanning QR-This is especially true for devices where the connector is USB ragged.
To connect over Wi-Fi, the computer and smartphone must be on the same local network, and the connection command will look like this:
adb connect 192.168.1.XX:5555Where 192.168.1.XX — it IP-The default port is usually 5555, but can be changed in the wireless debugging settings.
| Parameter | USB-regime | Wi-Fi mode | Recommendation |
|---|---|---|---|
| Transmission speed | High (up to 480 Mbps) | Depends on the router. | For firmware only USB. |
| Stability | Maximum | Medium | For critical USB operations |
| Convenience | Requires cable. | Total freedom | For everyday Wi-Fi debugging |
| Energy consumption | Charging from a PC | Battery discharge | Keep an eye on the charge. |
Using the wireless method saves the life of the USB connector, which is one of the most vulnerable points of the smartphone. However, for operations critical to interrupting the signal, such as unlocking the bootloader or flashing, it is still better to use a wired connection.
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Wireless debugging is ideal for running screenshots, installing lightweight apps, and logging, but never use it for critical system changes where a connection break can lead to a bootloop.
Solving Common Connection Problems
Even if you follow all the instructions, users often encounter errors. One of the most common problems on Xiaomi is blocking the connection with an antivirus or Windows firewall. When you first start an ADB, the PC security system can block the connection, considering it suspicious.
Another common situation is the RSA’s infinite authorization window. If you click OK, but the window disappears and reappears, try turning off the cable, turn off and re-enable USB Debugging in your smartphone settings, and then reconnect the cable.
If the computer sees the device but writes offline status, try restarting the ADB server with the command:
adb kill-server
adb start-serverIn some cases, especially on Chinese firmware versions, additional activation via the Mi Unlock Tool or SIM-linked Mi Account is required, which is part of the system’s antifraud system to prevent device theft.
⚠️ Warning: If after debugging, the smartphone begins to behave unstable, advertising windows or unknown processes appear, immediately turn off debugging mode and check the device with antivirus.
Remember that once you’ve completed your ADB work, you should not only improve security, but also prevent heavy debugging processes from accidentally starting, which can drain the battery in the background.