Modern smartphones of the brand Xiaomi, including sub-brands Redmi And POCO, are equipped with powerful tools for managing wireless connections. One of the most convenient features, which often goes underappreciated, is the ability to instantly transfer network data. Wi-Fi Using a visual barcode. This solution eliminates the need for users to dictate complex passwords or manually enter long character combinations, which is especially useful when connecting guests or new devices.
The operating mechanism of this technology is based on data encryption standards embedded in the shell MIUI or a new one HyperOSWhen you generate a code, the system encodes the network name (SSID) and a security key in a graphic format that can be easily read by the camera of any modern gadget. This is not just an image, but a fully functional digital pass that automatically initiates the authorization process in the recipient's system.
The importance of this feature is hard to overstate in a world where the number of connected devices in the home is growing exponentially. Smart light bulbs, robot vacuum cleaners, and tablets require a stable connection, and entering a password using a remote control or TV touchpad can become a real chore. QR code allows you to reduce this process to a few seconds, minimizing the risk of errors when entering characters.
Preparing your smartphone to generate an access code
Before creating a pattern key, you need to make sure your device is properly configured and has an active connection to the target network. The smartphone acts as a trusted intermediary that has already been authorized and has all the necessary credentials. credentialsWithout first connecting to the router, creating a code for this specific network will be impossible using the system's standard tools.
The preparation process also includes checking the software version, as the settings interface may differ slightly depending on the version. Android or shells MIUIOwners of older models may need to update their firmware to access advanced wireless network menu features. Ensure the device's screen is clean and the brightness is set to a sufficient level to clearly display graphic elements.
⚠️ Attention: The menu interface may vary depending on the firmware version. If you don't see the items described, check for system updates or search for "Wi-Fi" in the settings.
It's also worth keeping in mind that code generation is only possible for the network the phone is currently connected to or has stored in its memory. If you're trying to grant guests access to a guest network, connect your device to it first. This security requirement prevents accidental transmission of information about hidden or corporate networks to which the user doesn't have direct access.
Step-by-step instructions for creating a QR code on Xiaomi
The process of generating a visual key on devices Xiaomi The interface is extremely simplified and requires only a few screen taps. There's no need to search for hidden menus or use third-party apps, as the functionality is built directly into the system settings. The procedure is the same for most current models, regardless of screen size.
To begin, open the main settings menu and navigate to the wireless connections section. Depending on your interface localization, this may be called "Wi-Fi" or "Wireless Networks." A list of available access points is displayed here, and the currently active connection is usually marked with an icon or highlighted in color.
Click on the name of the network you're connected to, or on the arrow to the right of it, to expand the additional menu. In the window that opens, you'll see information about the signal frequency, connection speed, and, most importantly, the square QR codeIt is this one that contains the encrypted login data.
☑️ Check before code generation
Some firmware versions allow you to choose which code to generate: for a regular network or for a guest network. If your router has a guest network configured, this is a great option, as it isolates guest devices from your local network, improving overall security. cybersecurity.
Using Wi-Fi Sharing with Guests
The network sharing feature is especially useful when friends or colleagues are visiting. Instead of dictating a password that they might forget or enter incorrectly, you simply share your smartphone screen. All they have to do is point the camera, and their device will automatically offer to connect.
This technology works cross-platform. Although native code generation is most convenient on Xiaomi, such codes can be read by devices based on iOS, Samsung, Huawei and other manufacturers. This makes the method a universal solution for any environment containing different types of gadgets.
It is important to note that when using the standard "Share" method via Mi Share or system dialog, the password can be transmitted in encrypted form only to other devices XiaomiHowever, the graphic code on the screen is a universal standard, understandable by any camera with a scanning function.
If you frequently host guests, it makes sense to create a separate guest network in your router settings and connect your phone to it. This will allow you to generate a permanent QR code for this network, which will remain active regardless of password changes on the main network. This is especially convenient for offices or small coworking spaces.
Scanning the code and connecting other devices
The receiving device also doesn't need special apps to receive the signal and automatically authenticate. Modern smartphones have QR code scanning built right into the app. CameraSimply unlock the guest's screen and launch the standard photo-taking interface.
Point the camera lens at the image of the code displayed on your screen. XiaomiThe system will recognize the graphic pattern and display a pop-up notification prompting the user to connect to the network. Simply click the confirmation button, and the connection will be established instantly.
If the standard camera does not respond to the code, you can use the built-in scanner in the notification shade or the function Google LensThese tools are guaranteed to recognize the Wi-Fi data format and suggest appropriate actions. The process takes no more than 3-5 seconds.
| Device type | Scanning method | Necessary actions |
|---|---|---|
| Android 10+ | Camera app | Hover and tap the notification |
| iOS 11+ | Camera app | Point and click "Connect" |
| Old Androids | Google Lens / Scanner | Start the scanner, point it |
| Devices without a camera | Manual input | Read data visually |
Solution: If the code is not readable
Despite the technology's reliability, scanning may sometimes fail on the first try. Most often, the issue is due to insufficient lighting or glare on the source smartphone screen. Make sure the screen brightness is set to maximum and the display surface is clean.
Another common cause is distance. The camera should be at the optimal focal length: not too close to blur the code, and not too far away to allow the system to read details. Try slowly moving the receiving device closer and further away.
⚠️ Attention: If the source screen has a protective glass with strong anti-glare properties or a privacy filter, scanning may be difficult. Temporarily remove the protection or change the viewing angle.
It's also worth checking whether the receiving device is in airplane mode or has other restrictions blocking wireless modules. Restarting the camera app or clearing its cache can sometimes help if the scanner isn't working properly.
What to do if the camera doesn't see the code at all?
Try taking a screenshot of the QR code and opening it in the Google Photos app. Then use the "Search by Image" feature or the built-in Google Lens analyzer, which often performs better than the native camera in difficult lighting conditions.
Alternative connection methods and security
In addition to the standard QR code, the ecosystem Xiaomi offers a method MI Share (formerly Mi Drop). This technology allows you to transfer Wi-Fi settings between devices of the same brand by simply touching or bringing them close together. It's faster and more secure because it uses a secure data channel.
From a security standpoint, using a QR code carries certain risks if someone else takes a photo of the code. An attacker who obtains an image of the code could connect to your network without your knowledge. Therefore, it is not recommended to post screenshots of access codes on social media or public chats.
For maximum security, we recommend regularly changing your main network password and using guest access for temporary connections. You can limit the speed and duration of guest access in your router settings, minimizing the risk of data compromise.
Frequently Asked Questions (FAQ)
Is it possible to create a QR code for a network the phone is not connected to?
By standard system tools MIUI or HyperOS You can only generate a code for an active or previously saved network. Generating a code for a custom network requires a third-party generator app or manually entering the data into online services, which is less secure.
Does this method work on very old Xiaomi models?
Native QR code generation has been available in MIUI since around version 10-11. This functionality may not be available on older devices or custom ROMs. In this case, you'll need to use third-party apps from the store. Google Play.
Will the code work if the network SSID is hidden?
Yes, the QR code contains the full network name (SSID), even if it's hidden in normal search mode. When scanning such a code, the device will receive the exact name and attempt to connect, ignoring the hidden status.
How to change your Wi-Fi password without resetting your router?
To change your password, log into your router's web interface (usually at 192.168.0.1 or 192.168.1.1) using a browser. Find the "Wireless" or "Wireless Network" section and change the "Password" field. After doing this, you'll need to reconnect all devices, including your phone.