Modern smartphones Xiaomi And Redmi Offer users a variety of convenient features that significantly simplify interaction with surrounding devices. One such benefit is the ability to quickly connect to a wireless network without having to manually enter a complex password. This is especially useful when visiting someone, in a café, or in an office, where internet access is protected by a long combination of characters. Instead of asking the host for every letter and number, you can simply scan a special graphic barcode.
Technology QR codes has become the de facto standard for fast data transfer, and the operating system Android, on the basis of which the shell works MIUI or HyperOS, has built-in tools for working with them. You don't need to search for and install third-party apps from the store. Google Play, as the necessary functionality is already integrated into system components. Understanding how to properly use this feature on devices Redmi, will save you time and nerves in situations when you need to quickly access the network.
In this article, we'll cover every detail of the process, from preparing your device to troubleshooting possible scanning errors. We'll explore the system's built-in tools, camera features, and alternative methods that may be useful for owners of different smartphone models. We'll also address security issues, as scanning codes from unknown sources can pose certain risks.
Preparing your Redmi smartphone for scanning
Before you begin scanning, you need to make sure your device is ready to work with wireless networks. First, check that the module is enabled. Wi-Fi in your smartphone settings. Even if you use the built-in scanner, which automatically prompts for a connection, the radio module must be active for an immediate connection after reading the data.
Next, pay attention to the cleanliness of the camera lens. Grease, dust, or scratches on the lens can significantly hinder the recognition of graphic codes, especially in low light. Wipe the camera with a soft cloth to ensure a clear image, as the focusing system on the models Redmi Sometimes it can take a long time to find the contrasting boundaries of a black and white drawing.
⚠️ Important: Make sure the screen of the device you're scanning the code from is set to maximum brightness. A dim monitor or tablet screen may prevent the smartphone camera from correctly recognizing the code.
It's also important to check your operating system version. Although the scanning feature is available on most versions, Android, in older shell updates MIUI Camera operating algorithms may differ. If you encounter problems, try updating the software through the settings menu.
Using the built-in scanner in the Camera app
The fastest and most obvious way to connect to the network is to use the standard Camera app, which is pre-installed on all smartphones. Xiaomi And RedmiThe company's engineers integrated a QR code recognition module directly into the viewfinder interface, eliminating the need to launch separate apps. To do this, simply open the camera app and point the lens at the code.
In most cases, the system automatically recognizes the type of encrypted information. If it's Wi-Fi connection data, a pop-up notification will appear on the screen prompting you to connect to the network with the corresponding name (SSID). All you have to do is tap the confirmation button, and the smartphone will automatically enter the password and establish the connection.
☑️ Pre-scan check
However, sometimes automatic recognition may not work the first time. In such cases, try changing the distance to the code: move your phone further away or, conversely, bring it closer. Cameras Redmi They have autofocus, but it takes time to adjust. You can also try tilting the device to reduce glare on the surface where the code is printed or displayed.
Alternative Method: Scanning via Control Center
If for some reason the default camera doesn't respond to the code, you can use the system scanner, accessible through the Control Center. This method is especially useful if the camera app has been modified by third-party settings or is not working correctly. In shells MIUI And HyperOS This tool is often placed in a separate widget or accessible through search.
To access the scanner from the Control Center, swipe down from the top-right corner of the screen (or from the bottom up, depending on your navigation settings). In the menu that opens, find the icon labeled "Scan." If you don't see it on the first widget screen, tap the edit button (usually three dots or a pencil icon) and add the scanner module to the active list.
After launching the scanner, point the camera at the image. This tool's interface is tailored specifically for scanning codes, so it can be faster and more stable than the photo mode. A "Photo Library" feature is often available, allowing you to select a saved QR code image from your gallery if you can't point the camera at the original.
Using the system scanner also provides more information about the code's contents before proceeding. You'll see a text string with network information, allowing you to verify the correct access point name before connecting.
Connecting via Wi-Fi and Google Lens settings
The third option that may be useful to owners Redmi, is the use of the network addition function through the settings. In some versions Android In the Wi-Fi network selection menu, there's a dedicated button with a scanner icon right next to the list of available hotspots. Clicking this icon instantly launches a scan mode designed exclusively for network profiles.
Also, don't forget about service. Google Lens (Google Lens), which is deeply integrated into the ecosystem AndroidIf Xiaomi's standard methods don't work for some reason, Google Assistant often gets the job done brilliantly. You can launch it from the Google search widget on your home screen or from the Google app.
| Method | Speed of work | Accuracy | Availability |
|---|---|---|---|
| Camera app | High | Average | Always |
| System scanner | Average | High | Always |
| Google Lens | Depends on the network | Very high | Requires an account |
| Wi-Fi settings | High | High | New Androids |
When using Google Lens An active internet connection (at least a mobile one) is essential, as image processing often occurs on the company's servers. After recognition, the system will offer a card with network details and a "Connect" button. This is a reliable backup option if native tools are not available. Redmi are failing.
Create your own QR code for guests
Now that you know how to connect yourself, it's worth considering the opposite situation: how to create a code for your guests so they don't have to ask for the password every time. On smartphones Redmi This feature is native and doesn't require any additional apps. This turns your phone into a convenient tool for sharing access.
To generate the code, go to the menu Settings, then select the item Wi-FiFind the network you're already connected to in the list (it will be marked with a lock icon or the "Connected" status). Tap the arrow or network name to expand its details. In the menu that opens, you'll see a "Share" button or a QR code icon.
What to do if there is no button?
On some older versions of MIUI, the button may be hidden. Try tapping the eye icon to see the password and take a screenshot. Or use third-party generators and manually enter the SSID and password.
After clicking the Partage button, a large QR code will appear on the screen containing encrypted information about your network (SSID, encryption type, and password). Guests will only need to point their camera at it to connect. You can take a screenshot of this image and print it or send it to friends via messaging apps.
⚠️ Warning: Never post screenshots of your home network's QR code on publicly accessible sources or social media. Anyone with this image will be able to connect to your internet without your knowledge.
Possible problems and solutions
Despite the convenience of this technology, users sometimes encounter difficulties. The camera may not focus, the phone may not recognize the code, or it may display an error when attempting to connect. Often, the problem lies in the encoding format or damage to the image itself (scratches, creases).
If your phone says "Unable to connect," check if the list of saved networks in the device's memory is full. Android There's a limit on the number of remembered networks, and if it's exceeded, new ones may not be added. It's also worth making sure you're not too far from the router when scanning.
In rare cases, antivirus programs or security settings MIUI may block attempts to automatically connect to an unknown network. In this case, the system will ask for manual confirmation. If all else fails, try restarting your smartphone—this often resolves temporary software glitches in communication modules.
Security considerations when using QR codes
Using QR codes isn't just convenient, it also carries certain risks. Since the code's contents aren't visible to the naked eye, attackers can replace a legitimate code with a malicious one. Instead of Wi-Fi data, the code could contain a link to a phishing site or a command to install malware.
Always carefully review the pop-up notification before connecting. If, instead of offering to connect to Wi-Fi, the system prompts you to open a browser or install an app, cancel the action immediately. Modern versions Android and shells HyperOS They can warn about suspicious links, but the user's vigilance remains paramount.
Also, when connecting to public networks via a QR code, remember that your traffic may be unsecured. Use a VPN to encrypt your data, especially if you're working with banking information or confidential documents. A QR code only simplifies login but doesn't guarantee the security of data transmission within the network.
Why doesn't the Redmi camera see the Wi-Fi QR code?
Most often, the problem is caused by a dirty lens, moving the phone too quickly, or poor lighting. Also, check that "Macro" mode isn't enabled in the camera settings, as this can interfere with focusing at a distance. Clearing the camera app cache can sometimes help.
Is it possible to connect to 5GHz Wi-Fi via QR code?
Yes, the technology supports all Wi-Fi standards (2.4 GHz, 5 GHz, 6 GHz). However, if your smartphone is old and doesn't support the 5 GHz frequency, the connection will fail, even if the code is read correctly. The phone will simply ignore the network or display a compatibility error.
Where is the scan history stored on Redmi?
Scan history is usually available in the Scanner app (the clock or list icon in the corner). For privacy reasons, the default camera app may not keep a history unless you've manually saved scans to your gallery.
Is it safe to scan codes from advertising posters?
Scanning Wi-Fi connection codes in cafes or hotels is generally safe, as they only lead to network setup. However, scanning codes from street lamps or suspicious stickers to open websites is strongly discouraged.