Modern smartphones and tablets from the company Xiaomi, running under shell control MIUI or HyperOS, offer users convenient ways to share data. One of the most popular features is the ability to instantly share wireless network access without having to dictate a complex password to guests. This method saves time and eliminates typing errors, which is especially important for complex WPA2/WPA3 security combinations.
The technology for generating and reading graphic keys is built deep into the operating system kernel. Android, however, interfaces from different manufacturers may differ. In the ecosystem Xiaomi This process is implemented as natively as possible, allowing you to create and read codes directly from the settings menu or through the standard camera app. Understanding how this feature works will allow you to easily manage access to your home network.
In this article, we'll cover in detail all the methods for creating and scanning such tags. You'll learn how to quickly grant access to guests, how to connect to the network from another device, and what to do if standard methods fail. We'll also cover the nuances of working with different firmware versions and third-party utilities.
β οΈ Attention: The menu interface may differ slightly depending on the version. MIUI or HyperOSThe location of items may change after major system updates, so please follow the general navigation guidelines.
Benefits of using QR codes for network access
Using graphic tags to connect to Wi-Fi has become the de facto standard due to its versatility and speed. You no longer need to search for a piece of paper with a written password or spell it out, repeating it over and over again. The system encodes the network's SSID, encryption type, and the password itself into a single graphic pattern that can be read in a split second.
This method also increases security. When you dictate a password, it can be overheard by others, or it can be recorded by a guest without your knowledge. In the case of QR code You control the process: you share your screen only with the right person, and after connecting, the password isn't saved in your clipboard history or notes. This is especially important for office networks or networks with limited access.
Another important aspect is cross-platform. Although code generation on Xiaomi occurs by means of the system, it can be calculated by almost any modern device. Whether it is iPhone, smartphone on "clean" Android or even a laptop with a webcam and the appropriate software. This makes the technology ideal for mixed environments where gadgets from different brands are used.
- π Instant data transfer: connection occurs within 1-2 seconds after scanning.
- π Increased privacy: the password is not spoken out loud and is not visible to third parties.
- π± Universality: suitable for any device with a camera and Wi-Fi support.
How to create a WiFi QR code on a Xiaomi smartphone
You don't need to install any third-party apps to generate a pattern. Everything you need is already built into your device's wireless network settings. XiaomiFirst, make sure your smartphone is already connected to the network you want to share. If your device isn't connected to the internet, you won't be able to generate a code for the currently active network.
Go to the menu Settings and select a section Wi-FiA list of available networks will be displayed, with the currently active access point indicated at the top. Click on your network's name or the arrow next to it to expand the options. In the window that opens, you'll see a square graphic code generated by the system.
If you need to save this code for later use or printing, simply take a screenshot. In the gallery Xiaomi There's often a built-in feature for recognizing such codes, but for guests, simply showing them your phone's screen is enough. Some firmware versions allow you to immediately send the image via messaging apps by clicking the "Share" button under the code.
βοΈ Check before generation
It is worth noting that in new versions HyperOS The interface may offer not only a standard code but also the ability to create a "card" with a design. However, the classic black-and-white option remains the most compatible with all scanners. If the code is not displayed, check that Airplane mode is not enabled, which could block the module's operation.
Scanning the code with a standard camera and scanner
The reading process on devices Xiaomi It's as simple as possible. You don't need to run any special applications. The standard application Camera has a built-in module AI (artificial intelligence) that automatically recognizes QR codes. Point the lens at an image, and a connection notification will pop up within a second.
If automatic recognition doesn't work, it may be disabled in the camera settings. Go to the camera menu (three bars or the gear icon in the corner) and make sure the "Code Scanner" or "Google Lens" toggle is enabled. Alternatively, use the system "Scanner" app, often found in the "Tools" folder on your desktop.
When aiming the camera, it's important to hold the device steady and ensure good lighting. The camera should focus on a high-contrast image. After a successful read, the system will display a dialog box asking "Connect to network 'Name'?". Tap "OK," and the smartphone will automatically enter the credentials and establish a connection.
What to do if the camera does not see the code?
If the standard camera isn't responding, try cleaning the lens of fingerprints. Also, make sure the distance to the code is optimalβusually 10-20 cm. If the code is on the screen of another phone, reduce the brightness of the source to avoid glare. As a last resort, use a third-party scanner app from Google Play, which has a more sensitive focusing algorithm.
β οΈ Attention: Never scan codes from unknown sources, found on the street, or in suspicious messages. Attackers can create codes that redirect you to a phishing site or attempt to install a malicious app, although this is less of a concern for Wi-Fi than for links.
Connecting to the network using the Mi Wi-Fi app
For ecosystem users Xiaomi a proprietary application is available Mi Wi-Fi (or Xiaomi Home (In some regions). While its primary function is managing the brand's routers, it can also handle access codes. This is especially useful if you want to not only connect but also analyze the signal quality or connection speed immediately after logging in.
The app often has a "Tools" or "Services" section where you can find the scanning function. The advantage of using native software is its deep integration with the smartphone's hardware. The app may offer to optimize DNS settings or switch the frequency from 2.4 GHz to 5 GHz immediately after connecting, if the router supports this feature.
Also, through the app Mi Wi-Fi You can manage already connected devices. You'll see which device connected when, and if necessary, you can block guest access directly from the program interface. This gives you an additional level of control over your home network compared to standard tools. Android.
- πΆ Signal analysis: checking RSSI level and channel quality.
- π‘οΈ Access control: the ability to block guest devices.
- βοΈ Router setup: change network settings without logging into the web interface.
Using third-party apps and Google Lens
If for some reason standard means Xiaomi don't work (for example, on very old models or custom firmware), this will come to the rescue Google LensThis service is built into most Android smartphones and is accessible through the search widget or a separate app. It features one of the most powerful image recognition algorithms.
To use, run Google Lens, point the camera at the code, and select the "Wi-Fi" tab. The system will recognize the data and prompt you to connect. The advantage of Google Lens is that it can read codes even in low light or if the image is slightly blurry. It also allows you to copy the password in text format if a direct connection is not possible.
There are many third party generator and scanner apps available. Google PlayThey can be useful if you need to generate a code for a network you're not currently connected to (by entering the data manually), or if you want to keep a history of all scanned networks. However, for one-time operations, the system's capabilities are limited. Xiaomi usually that's enough.
Connecting a laptop and PC via a webcam
There is often a situation when you need to connect a laptop with Windows or macOS Wi-Fi, and typing a long password on the keyboard is inconvenient. If your laptop has a webcam, the process can be simplified. Windows 10/11 There is no built-in scanner in Explorer, so you will need third-party software or using your smartphone as a bridge.
One effective way is to use the Phone Link app in conjunction with your smartphone. XiaomiYou can broadcast your phone's screen to a PC, open the QR code there, and scan it with your laptop's webcam if you have a universal scanner installed. However, a simpler approach is to use specialized PC programs, such as "QR Code Scanner for Windows."
There's also a method that doesn't require a PC camera. You can generate a code on your phone, take a photo of it with your phone (so it's in your gallery), and then send the photo to your computer via messenger or email. With the image open full-screen, hold your smartphone close to the laptop screenβit will read the code from the monitor and connect. It sounds complicated, but it's faster than searching for drivers.
| Method | Necessary equipment | Complexity | Speed |
|---|---|---|---|
| Smartphone camera | Smartphone with a camera | Low | High |
| Mi Wi-Fi app | Xiaomi smartphone | Low | High |
| PC with a webcam | Laptop, scanning software | Average | Average |
| Manual input | Any device | High (errors) | Low |
Solution and troubleshooting
Despite the simplicity of the technology, errors can sometimes occur. For example, the phone scans the code but displays "Unable to connect." This most often means that the router configuration (MAC filtering) has changed or an incorrect password was entered when generating the code on the host side. In such cases, it's best to "forget" the network in the Wi-Fi settings and try again.
Another common problem is that the code isn't read at all. This could be due to the source screen's resolution (pixels are too small) or a dirty camera lens. Try changing the distance: move the phone closer or further away. Changing the angle to reduce glare on the screen or paper also helps.
If you're trying to connect to a hidden network (SSID), a standard QR code may not work because it broadcasts the network name. In this case, you'll have to enter the SSID manually, even if you know the password. Hidden networks require special considerations and aren't always compatible with quick connection using pattern keys.
Why can't I read the QR code on my old phone?
Older versions of Android (below 8.0) may not have a built-in decoder in the camera. In this case, you'll need to download a separate app from the store. Another issue could be the camera's low resolution, which can't focus on fine details in the code.
Is it possible to connect an iPhone to a Xiaomi code?
Yes, iOS fully supports standard Wi-Fi QR codes. Point your iPhone camera at the code, and a system notification will appear saying "Connect to network 'Name'." No additional apps are required; the technology works natively within the operating system.
Is it safe to place a Wi-Fi QR code in a public place?
No, this is highly discouraged. Anyone within range will be able to connect to your network, gaining access to local resources and potentially intercepting traffic. If you need to provide access to a cafe, it's better to use a guest network with client isolation.
What should I do if my router password has changed?
All previously created QR codes will become invalid. You will need to regenerate a new code with the latest data and distribute it to users. Old codes can be deleted or crossed out to avoid confusion.