Modern smartphones such as Xiaomi Redmi Note 7, offer users a variety of convenient features for managing network connections, and one of the most practical is the ability to use QR codes for Wi-Fi. This technology allows you to instantly share network access with guests or quickly connect your devices without having to manually enter a complex password. Redmi Note 7 People often wonder how exactly to activate this function, given the specifics of the MIUI shell.
The process of interacting with wireless networks via graphic codes is divided into two main areas: scanning someone else's code to enter and generating your own code to grant access. Android interface MIUI-based networking may have its own nuances depending on the firmware version, but the basic principles remain the same. Understanding these mechanisms makes life much easier when you need to quickly set up a network on a tablet, laptop, or a friend's phone.
In this article, we'll cover all aspects of using QR codes on your device in detail. You'll learn where to find the built-in scanner, how to create a code for your network, and what to do if the system doesn't recognize the image. WPA2/WPA3 encryption standard ensures that data exchange via QR code remains secure, as the password is not displayed in clear text when scanned.
Built-in scanning tools in MIUI
MIUI shell installed on Redmi Note 7, provides several ways to activate the camera for code reading. The fastest method is to use the system widget in the notification shade or control center. Simply swipe down to open the quick access panel and find the icon. Scanner or QRClicking on it instantly launches the camera in graphic mark recognition mode.
An alternative is through the standard Camera app. In modern firmware versions, scanning mode is often integrated directly into the viewfinder interface. Simply point the lens at the code, and the system will automatically suggest the connection action. If automatic recognition doesn't work, try switching the shooting mode to "Scanner" or More → Scan in the camera settings menu.
⚠️ Important: Make sure the camera lens is clean. Oily stains or dust can prevent the camera from correctly reading the fine details of the QR code, resulting in connection errors.
You can also access the scanner by searching in settings or through the Security app, which comes preinstalled on all Xiaomi devices. The "Scanner" section not only scans Wi-Fi codes but also translates text and recognizes products and documents. It's a versatile tool worth keeping on hand.
Generating a QR code for Wi-Fi distribution
If you are the owner of a network and want to share access with guests, Redmi Note 7 It allows you to easily create a corresponding pattern key. To do this, go to your Wi-Fi settings. Find the network you're currently connected to in the list of networks and click the arrow to the right of its name or the network icon itself to open detailed settings.
In the menu that opens, you will see a button Share or a QR code icon. Tapping it will require you to confirm your identity by entering your unlock pattern or fingerprint. This is a security measure to prevent accidental or unauthorized access.
automated generation of access codes to your data.
After successful authentication, a large QR code will appear on the screen. Anyone with an Android or iOS device can point the camera at it and automatically connect to your network. The password will remain hidden, which is especially convenient when working with guest networks in the office or at home.
☑️ Check before code generation
Manual connection via network settings
Sometimes automatic scanning may not work due to code corruption or lighting conditions. In such cases, Xiaomi Redmi Note 7 You can manually enter the data contained in the QR code. The code usually contains a format string WIFI:S:SSID_NAME;T:WPA;P:PASSWORD;;Knowing this structure, you can enter the data manually.
To do this, go to Settings → Wi-Fi and select the desired network from the list. If the network is hidden, scroll to the bottom of the list and select Add NetworkEnter the network name (SSID) exactly as it appears in the source, taking care to ensure proper case. Then, in the security field, select the encryption type (usually WPA/WPA2 PSK) and enter the password.
Pay special attention to the IP settings. In most cases, leaving the settings as is is sufficient. DHCPto have the router assign the address automatically. However, on corporate networks or if you have a static IP address, manual entry may be required. Click the gear icon or the arrow for network settings and select IP Settings, switching to "Static".
| Parameter | Description | Example of meaning |
|---|---|---|
| SSID | Wireless network name | Home_WiFi_5G |
| Security | Data encryption type | WPA2-PSK |
| Password | Network access key | MySecurePass123 |
| IP address | The unique address of a device on the network | 192.168.0.105 |
⚠️ Important: When manually entering your password, pay close attention to the case and special characters. Even a single character error will result in connection failure, and the system will continually attempt to log in.
Using third-party applications
Standard equipment Redmi Note 7 They're quite functional, but sometimes users prefer third-party solutions for more granular control or scan history. The Google Play Market offers numerous scanner apps that can save scanned code history, create codes with logos, or work offline.
Popular apps like "QR Code Reader" or "Barcode Scanner" often have more flexible recognition settings. They can handle damaged or poorly printed codes better. However, when installing such apps, pay attention to the permissions they request: QR code scanners don't require access to your contacts or microphone.
Some apps allow you to create complex Wi-Fi codes with hidden SSIDs or specific proxy settings. This can be useful for IT professionals setting up equipment in offices. For the average user who simply needs to connect to a home router, MIUI's capabilities are generally sufficient.
Third-party scanner security
Using unverified QR code scanning apps can be risky. Some programs can redirect you to phishing sites if the code contains a URL rather than Wi-Fi information. Always verify that the "Connect to Wi-Fi" action matches the expected network name.
Common problems and their solutions
Despite the simplicity of the technology, users Xiaomi Redmi Note 7 You may encounter connection difficulties. Often, the problem lies in incompatible frequency bands. If your router only broadcasts at 5 GHz, and your smartphone (or the device you're connecting to) only supports 2.4 GHz, the connection will fail, even if the QR code scanned correctly.
Another common cause is a limit on the number of connected clients. Home routers have a limit on the number of simultaneous connections. If you have many devices connected, a new device may not be able to obtain an IP address. In this case, rebooting the router or disconnecting unused devices may help.
It's also worth checking your date and time settings. If Redmi Note 7 If the time is incorrect, errors may occur when verifying security certificates, especially on corporate networks with enterprise-level encryption. Make sure the "Use network time" option is selected.
Security considerations when using QR codes
Using QR codes for Wi-Fi is convenient, but requires caution. Never scan codes from unknown sources, such as those posted on the street, in advertisements, or sent by strangers. Such codes may not connect to Wi-Fi, but rather lead to a malicious website or initiate a virus download.
When generating a code for your network, remember that anyone who takes a photo of it will gain access to your internet. Don't post such codes publicly, as you don't want your neighbors using your data. It's best to create a separate guest network for guests with limited access to local resources.
Change your Wi-Fi password regularly, especially if you frequently share the code with a lot of people. Redmi Note 7 This is done through the router settings, after which old QR codes will no longer work, and new ones will need to be generated. This is basic digital security hygiene.
Why doesn't Redmi Note 7 see the Wi-Fi QR code?
Most often, the problem is poor lighting, a dirty camera lens, or a code that's too small. Also, make sure the code isn't upside down and is in focus. If the code is on the screen of another device, increase the screen brightness.
Is it possible to connect to a hidden network via QR code?
Yes, the Wi-Fi QR code standard supports transmitting the SSID stealth parameter. However, to successfully connect, your phone must already be aware of the network's existence, or the code must contain the full network name, which the phone will search for in the air.
Does this method work on older versions of Android?
Native Wi-Fi code recognition was introduced in Android 10. On older versions of MIUI on the Redmi Note 7, a third-party app may be required to decrypt the code before connecting.
How to delete a saved Wi-Fi network on Xiaomi?
Go to Wi-Fi settings, tap the network name, and select "Delete" or "Forget Network." This will also delete the saved QR code for quick access, if the system has recorded one.