Xiaomi, Redmi and Poco smartphone owners often face the need to connect their device to a computer not just to charge, but to share data fully. By default, modern versions of the MIUI and HyperOS shell put the port into charging mode immediately after connecting to a PC, and this is done for security reasons to prevent unauthorized access to files when connecting to public charging stations.
However, to transfer photos, install applications or conduct a deep diagnostic system, the user needs to manually activate the desired data transfer protocol, without which the computer simply will not see the internal storage of the gadget. In this article, we will discuss in detail how to change the USB mode, what you need hidden engineering settings and how to enable debugging for advanced users.
Itβs important to understand that settings may vary slightly depending on the Android version and firmware. However, the basic principles remain the same for all devices of the brand. Weβll look at both the standard methods available to each user and the more complex options through the engineering menu.
Standard USB connection modes
Modern Xiaomi smartphones support several protocols for interacting with external devices. When you connect the cable to the PC, the system defaults to the most secure option, most often it is the βCharge Onlyβ mode, which restricts access to the file system. To change this behavior, you need to lower the notification curtain after connecting the cable.
The notification list will show a message, "Charge via USB" or something similar, and you click on it, you will open the mode selection menu, and you will find basic options, each of which is a problem solver, for example, you use MTP to copy music and documents, and you use PTP to connect a camera or specific software.
β οΈ Warning: When connecting to unfamiliar computers in public places, always leave Charging Only mode, which will protect your personal data from possible copying by attackers.
If you plan to use your phone as a modem to distribute Internet to your computer, you will need RNDIS mode. It creates a virtual network card through which traffic is transmitted from the mobile device to the PC. Choosing the wrong mode can lead to the computer not identifying the device or installing the necessary drivers.
- π± Charging β standard mode that blocks data transmission.
- πΎ MTP (Media Transfer Protocol β the main mode for transferring multimedia files and documents.
- π· PTP (Picture Transfer Protocol β Emulation of a digital camera for photo work.
- π RNDIS β regime USB-modem.
Switching between these modes is instantaneous and does not require the device to restart. However, if the computer has stopped responding to the connection, try changing the cable, as some of them are designed solely for charging and do not have lines for data transfer.
How to enable file transfer (MTP)
For most users, the main scenario is to copy photos or videos to a computer. This is MTP mode. Unlike older versions of Android, where you had to choose the mode in the developer menu, in modern MIUI shells, this is done through the notification curtain. First connect the smartphone to the PC with a quality cable.
Unlock the device screen. Swipe from top to bottom to call the control center. Find the USB connection notification. Click on the notification text or the arrow next to it. Open a menu where the default checkbox may be opposite to Charge. You need to select File Transfer or File Transfer.
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Use the original cable from the kit or a certified counterpart. Cheap cables often don't have shielding, resulting in loss of transmission speed and connection breaks when working with large files.
When you select mode, a new disk or device will appear on your computer screen. If that doesn't happen, check if drivers are installed. In Windows 10 and 11, they are usually installed automatically through the Update Center. If the system says "Device not recognized," try switching. USB-port on the computer or reconnect the cable.
In some cases, especially on older versions of firmware, authorization confirmation is required. On the smartphone screen, you may see a request "Allow access to data?" Be sure to click "Allow", otherwise the computer will not be allowed to read the contents of the memory, without this step, the folders will remain empty or inaccessible.
Configuring debugging over USB for developers
To interact more deeply with the system, install applications directly from the PC (ADB), firmware through Mi Flash or debugging code, you need to activate debugging mode, which is hidden from ordinary users to avoid accidental system failure, and you need to access an expanded settings menu to enable it.
The first step is to activate the developer mode. Go to Settings. β About the phone. Find the line "Version." MIUIΒ» or "Version" OSΒ». You need to quickly click on this line 7 times in a row. After a series of clicks, a pop-up message will appear: "You became a developerΒ».
Now go back to the main settings menu and go to the "Additional" or "Extended Settings" section, and there's a new "Developers" item, and go to it and find the "Debug USB" switch, activate it, and the system will issue a warning about potential risks, confirm the action.
When you first connect to a computer with debugging enabled, you'll see a dialog box on your smartphone screen asking if you can trust that computer, and you'll need to tick "Always Allow from this computer" and click "OK." Without that confirmation, ADB commands won't be executed.
- π§ Access to ADB β Allows you to control your phone from a PC via the command line.
- π² Installation APK β The ability to install applications directly from IDE file manager.
- π Logistics β saving system logs for error and bug analysis.
- βοΈ Changing settings β access to hidden animation settings and processes.
β οΈ Warning: Do not leave the debugging on USB It's always on if you plug your phone into public charging points, and it can open up access to your system through vulnerabilities. ADB.
Engineering menu and choice of USB configuration
In some situations, standard mode switching is not enough, such as if the phone is defined as a charger and does not switch, or you have to force a specific protocol to set it. For such cases, there are engineering menus and hidden USB configuration settings, and they are also accessed through the developer menu.
In the Developer Menu, scroll down to the Network or Debugging section. Find the Select Configuration option. USBΒ» (Select USB Configuration. Click on it. Here's a list of all the protocols available that your device's controller supports. MTP charger.
You can choose RNDIS mode for modem, MIDI mode for musical instruments, or Audio Source mode for audio transmission. The changes take effect immediately, but it is worth remembering that choosing an unsupported configuration can cause the device to function unstable when connected.