Activating developer mode and then debugging USB on Xiaomi and Redmi smartphones is often a necessary step for advanced users who want to gain full control of their device.This feature allows you to access system logs, install applications directly from your computer via ADB, and perform deep cleaning of preinstalled debris. Unlike many other manufacturers, the Chinese giant has introduced additional layers of protection, which makes the process of inclusion not always obvious to the beginner.
The main difficulty is that the menu item required to activate the mode is hidden by default from the eyes of the average user, this is done for security purposes, to prevent accidental change of critical system parameters or the installation of malware by inexperienced owners, so the standard path through Settings here will not work without prior preparation.
In this article, we will take a closer look at each step, from unlocking the hidden menu to setting up access rights when connecting to a PC, and learn why a debugging confirmation request may not appear and how to bypass typical MIUI or HyperOS interface errors.
Why do I need to debug USB on Redmi?
Before we start to do technical manipulation, it is worthwhile to understand exactly what opportunities this mode opens. USB (USB Debugging is a tool originally designed for application developers to test programs on a real device connected to a computer, but it has long gone beyond just writing code.
With the Android Debug Bridge (ADB) tool, users can uninstall system applications that cannot be removed by standard methods, make full data backups, update firmware manually, or restore access to the system if the smartphone stopped booting. Without debugging enabled, many powerful optimization utilities simply won’t see your device.
- 📱 Install applications (.apk) directly from your computer without using a browser or file managers on your phone.
- 🗑️ Removing system debris and advertising embedded in the shell MIUI, through ADB-team.
- 💾 Create complete data backups and settings before flashing or resetting.
- 🔧 Screenshots and Record High Bitrate Screen Directly to PC Hard Drive.
It's important to understand that enabling this feature makes your device more vulnerable when connected to other people's computers. If you connect an active debugging phone to a public charging terminal, attackers could theoretically access your data. So always turn off debugging when it's not actively in use, especially in public places.
Activation of the “Developers” menu
The first and most important step is to unlock the hidden partition in the settings. On all Xiaomi, Redmi and POCO smartphones, this item is hidden by default. To get to it, you need to perform a series of quick clicks on the build number.
Open the Settings app and scroll to the bottom of the list. Find About. At the top of the screen, you'll see a card with your model's name, like the Redmi Note 12. MIUI» or "Version" OS». That's what you need to click on.
☑️ Checking the activation of the menu
After the seventh press, the system will give a pop-up notification: “You became a developer!” If you have a password to unlock the screen or PIN-The code, the system will ask you to enter it to confirm the actions, and this is a security measure to prevent children from accidentally activating the mode.
Now go back to the main settings menu, scroll down to the "Advanced" section (some firmware versions may call it "Advanced Settings"), and you'll find a new one, "Developers," that's where all the tools we need are.
⚠️ Warning: Do not change the settings in the For Developers section unless you are sure of their purpose. Changing the animation of windows or the limit of background processes can lead to unstable interface operation.
Configuring debugging parameters
Once you log into the developer menu, you'll see a long list of different options, and we're interested in the Debugging section, which is usually at the top of the list, and then you'll switch the USB Debugging slider to the active position.
The system will immediately give you a warning about the risks associated with using this mode. You need to press OK. However, the setting does not end there. Modern versions of MIUI and HyperOS have an additional layer of protection.
Click on the name of the USB Debugging (not the switch, but the text) to open the submenu, and you will see the option “Secure debugging over USB” (or “USB Debugging (Security Settings)”).
When enabling secure debugging, the phone will require you to enter a phone number and receive SMS-This is a unique security feature of Xiaomi, tied to the Mi Account. Without this step, the computer will not be able to send commands to the device, even if the main switch is on.
- 🔒 Secure debugging requires a mandatory SIM card and a network to obtain a confirmation code.
- 💻 The computer must be authorized: the first time you connect on the phone screen, a request will appear “Allow debugging?».
- ⏳ The confirmation code is valid for a limited time, so enter it quickly.
What to do if the SMS does not arrive?
Computer connection and authorization
When all the settings on the phone are done, there comes a moment of truth: a PC connection. It's critical to use a quality cable to work consistently. Cheap cables that come with some accessories often only support charging and don't transmit data.
Connect your smartphone to your computer. The USB mode selection menu will appear in the notification curtain. The default is "Charge Only." Click on this notification and select File Transfer (MTP) mode. In Charge Only mode, debugging will not work.
On the screen of the smartphone should appear system dialog box with the question: “Allow debugging by USB?» and displaying a digital fingerprint (RSA-Make sure to tick "Always allow from this computer" and click "OK».
If the window doesn’t appear, try the following:
- Turn off and reconnect the cable.
- In the developer menu, find the option “Default USB Configuration” and select “File Transfer”.
- Check if ADB drivers are installed on your computer (this is often required for Windows).
| Status of the indicator | Meaning | Action. |
|---|---|---|
| Migayette | Waiting for confirmation on the phone screen | Unlock the screen and press “OK” |
| It's burning all the time. | Device is connected and authorized | You can work with ADB. |
| It's not burning. | No connection or just charging. | Replace the USB cable or port |
| Driver error | Windows did not recognize the device | Install Xiaomi/ADB drivers |
⚠️ Warning: If you connect your phone to someone else's computer, never tick "Always Allow" this will give the PC owner full access to your smartphone's file system.
Solving problems and mistakes
Despite its apparent simplicity, users often face difficulties, and one of the most common problems is that the computer sees the phone to charge, but does not identify it as a debugging device, so Windows Device Manager may have an exclamation point device or an unknown device hanging in it.
Often the problem is that there are no drivers. ADB Windows 10 and 11 Sometimes you need to manually install the driver. android_winusb. This can be done through Device Manager by selecting “Update Driver» → «Select a driver from the list of available» → «Android ADB Interface».
Another nuance is the Android version, which has newer versions (Android 11, 12, 13, 14) called Wireless Debugging, which allows you to connect to your phone over Wi-Fi, but you still need a cable to set up the first setup, and if wired debugging doesn't work, try activating wireless mode in the same developer menu.
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Use the original cable or certified analogue. Cheap brands cables often don't have internal contacts to transmit data, providing only current.
It's also worth checking if antivirus or firewalls block the connection, and sometimes corporate Wi-Fi networks can block the ports needed for debugging, and in such cases, it's better to use the mobile Internet or the home network.
- 🔄 Rebooting your phone and computer often solves the problem of a suspended service ADB.
- 🔌 Try another one. USB-port, preferably USB 2.0, since with USB 3.0 Driver conflicts sometimes occur.
- 📱 Make sure the phone screen is unlocked at the time of connection, otherwise the confirmation request will not appear.
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90% of Connection Problems Are Solved by Replacement USB-cable to a qualitative analogue with support for data transmission.
Security and completion
Once you have completed all the necessary manipulations (install applications, uninstall logs or clean the system), it is crucial to properly complete the session. Left on debugging is a potential security hole in your device.
To turn off mode, go back to the Developer Menu and turn off the master switch at the top of the screen, which deactivates all related functions, including secure debugging, and it is also recommended to go to the USB settings and reset authorization.
In the developer menu, find the item "Debugging by USB» and click "Cancel authorization debugging by USB» (or USB Debugging authorizations.“ This will delete all saved authorizations. RSA-Computer keys that previously connected to your phone.
⚠️ Note: If you sell or give away your phone, make sure to complete a full Wipe Data reset. Simply turning off debugging is not enough if there is personal data left on the device.
Remember, the developer mode is designed for testing, and its constant use in everyday life can lead to increased battery consumption, as some background processes may work more actively to collect logs.