In today's digital world, wireless network access often becomes a top priority when visiting a friend or visiting an office. Smartphone owners Xiaomi And Redmi People often wonder how to quickly connect to the network using the camera or built-in system tools, instead of manually entering a complex password. The QR code scanning function is built into the shell. MIUI And HyperOS at the system application level, making the process as convenient as possible.
However, not all users are aware of the hidden capabilities of their devices or encounter situations where the standard algorithm fails. Sometimes the camera simply doesn't recognize the code, and sometimes the security system blocks automatic connection. In this article, we'll cover all the nuances of working with Wi-Fi QR codes On Redmi devices, we'll look at alternative methods and solve common problems.
Different firmware versions may have different menu layouts, but the general principle remains the same. We'll cover both standard tools and third-party solutions for those cases where standard methods don't work. Get ready to learn about secret codes of the engineering menu, which can help in diagnosing the Wi-Fi module if scanning has stopped working at the software level.
Using the built-in scanner in the Camera app
The most obvious and fastest way to connect to the network is to use the built-in Camera app. Engineers Xiaomi We've integrated QR code recognition algorithms directly into the viewfinder, eliminating the need for separate utilities. You don't need to install third-party software, as this functionality is already enabled by default in most regions.
To get started, simply launch the app and point the lens at the code image. The system will automatically analyze the frame's contents. If the code contains wireless network data, a pop-up notification will appear on the screen prompting you to connect. This works thanks to service integration. Google Lens or our own recognition engine MIUI.
It's important to hold the phone steady and ensure good lighting. Shaky hands or glare from the laminated code surface can make focusing difficult. Also, make sure that modes that disable intelligent scene recognition are not enabled in the camera settings, although this is rare on Redmi.
- 📸 Launch the Camera app and select Photo or Documents mode.
- 🔍 Point the lens at the QR code so that it is in the focus frame.
- 📲 Wait for the yellow or blue bar with the network name to appear.
- ✅ Click the notification to automatically log in to the network.
Sometimes the system may request permission to use geolocation or data. This is necessary to accurately determine the network type and verify the address's security. If you see a request, be sure to confirm the action, otherwise the connection may fail. In some firmware versions, the scanner may be hidden in the "More" or "Advanced" menu, indicated by an icon of three dots or squares.
Alternative methods via Control Center and Settings
If for some reason the camera doesn't respond to the code, you can use system widgets. Shell MIUI Allows you to place a scanner shortcut directly in the notification shade or Control Center menu. This significantly speeds up access to the feature without having to unlock the phone and search for the app icon.
You can add this element using the quick access button editor. Swipe down from the top of the screen to open the control panel and find the edit button (usually a pencil icon or three dots). In the list of available widgets, find "Scanner" or "Scan" and drag it to the active area.
⚠️ Attention: On some global firmware versions, the scanner shortcut may be missing from the notification area. In this case, use the settings search or the desktop shortcut created when you first launch the feature.
Another way is through the Wi-Fi settings menu. Open Settings → Wi-FiAt the top of the screen, next to the list of available networks, there's often a scanner icon. Tapping it immediately opens a scanning interface optimized specifically for connecting to networks, ignoring other types of QR codes (such as website links or contact information).
This method is especially useful if you have an older phone with a slow camera, as the dedicated scanner interface in the settings is easier to use and launches faster. Furthermore, it displays your scan history immediately, allowing you to quickly connect to a previously connected network simply by scanning the code again.
Setting up QR code display for guests
Often there is a situation when you don't need to scan a code, but create one for your guests. Your smartphone is based on Android It can automatically generate a QR code for the network it's already connected to. This eliminates the need to dictate a complex password, letter by letter and symbol.
To do this, go to the Wi-Fi menu and click on the name of the active network or the arrow next to it. A card with connection details will open. There you'll see a square code that can be scanned by other devices. This is a standard feature. Android 10 and above, implemented in MIUI.
If the code doesn't appear immediately, look for the "Share" button or the QR code icon in the corner of the screen. Tapping it will expand the image to full screen. Importantly, this code is dynamic and contains an encrypted password. You can't simply photograph it and send it as an image for manual entry—it's designed specifically for scanning.
| Parameter | Description | Where to find |
|---|---|---|
| Encryption type | WPA2/WPA3 | In detail of the network |
| Frequency | 2.4 GHz / 5 GHz | In the connection properties |
| IP address | Dynamic/Static | Additional Wi-Fi settings |
| MAC address | Unique identifier | About phone / Status |
This feature is especially convenient in the office or when meeting a large group. You can display a code on your Redmi's screen, and guests can scan it with their phones. This significantly increases connection speed, and the risk of entering a password incorrectly is reduced to zero.
Troubleshooting: Camera can't see code
There are times when you point the camera at a code, but nothing happens. This could be due to several factors. First, check the lens is clean. Oily fingerprints scatter light and interfere with the algorithms. pattern recognition focus on contrasting elements of the code.
Secondly, the issue may be related to distance. Try moving the phone closer or further away. Macro mode cameras and regular wide-angle modules have different minimum focusing distances. If the code is printed on the small screen of another phone, try moving the Redmi away from you a little.
- 🧹 Wipe the camera with a soft, lint-free cloth.
- 💡 Increase the brightness of the screen from which the code is read.
- 🔄 Rotate your phone 90 or 180 degrees for a better viewing angle.
- 📱 Make sure the code is not corrupted and has clear boundaries.
If the software scanner is still silent, it is possible that the service settings in the system are corrupted. Google Lens or component Baidu Scan (in Chinese versions). Try clearing the Camera app cache through the app menu. Go to Settings → Apps → All apps → Camera → Clear data.
Third-party applications and utilities
When the standard Redmi tools fail, applications from Google Play MarketThere are many scanners that use more aggressive image processing algorithms, can work in low light, or can read damaged codes.
Popular solutions include "QR & Barcode Scanner" by Gamma Play or "Binary Eye." These apps often feature a flashlight mode that turns on automatically upon launch, which is crucial for scanning codes in dark rooms or at parties.
However, be careful when choosing software. Many free scanners are overloaded with ads or require unnecessary permissions, such as access to contacts or the microphone. For scanning Wi-Fi codes, only camera permission is required. Always check the list of requested permissions before installation.
⚠️ Attention: Never connect to Wi-Fi networks whose QR codes you found publicly online or received from an unknown party. The code could lead to a phishing site or connect you to a network designed to intercept your traffic.
Using specialized apps is worthwhile if you work with large amounts of code or your Redmi's stock camera has low resolution. Otherwise, the built-in functionality MIUI is a safer and more energy efficient solution.
Security and Hidden Networks
It's important to understand the limitations of the technology. A QR code can't connect you to hidden network (Hidden SSID), whose name is not broadcast. For such networks, the code must contain not only the name and password, but also a special stealth flag, which is not supported by all routers and phones.
It's also worth considering the security protocol version. If the router is configured to use the outdated WEP encryption, modern versions of Android may warn about low connection security or refuse to connect via QR code altogether, requiring manual confirmation.
When scanning codes in public places (cafes, airports), always check the network name in the pop-up window before clicking "Connect." Attackers can create a hotspot called "Free_WiFi" and post their own code next to the legitimate one.
☑️ Security check before connection
Frequently Asked Questions (FAQ)
Why doesn't Redmi offer to connect after scanning?
This can happen if there was an error in the code generation, or the network is too far away. Also, check that your phone isn't in Airplane mode or that the Wi-Fi module itself is disabled. Sometimes, rebooting the router helps.
Is it possible to create a QR code for a guest network?
Yes, most modern routers allow you to create a separate guest network. You need to go to the router settings (usually at 192.168.0.1 or 192.168.1.1), enable guest mode, and generate a code for it using the router manufacturer's app or web interface.
Does the code scanner work without the internet?
Yes, the image recognition process itself occurs locally on the phone's processor. However, a router signal is naturally required for a direct internet connection. Generating a code from your network also doesn't require internet access.
What should I do if the code is damaged or partially covered?
QR codes have a built-in error correction system. If less than 30% of the code's surface is damaged, the Redmi camera will likely be able to read it. Try adjusting the angle or distance. If this doesn't work, use a scanner app with manual focus adjustments.
Where can I find the history of scanned codes?
In the Camera app, history is typically not explicitly saved for privacy reasons. However, if scanning was performed through a widget or Wi-Fi settings, the history of connected networks is saved in the Wi-Fi menu. To view your link scanning history, it's best to use the Chrome browser or the Google app.