Modern smartphone users often need to quickly share wireless network access with guests or new devices. Entering long and complex passwords manually becomes tedious, especially if they contain uppercase and lowercase characters. Fortunately, the operating system Android has been offering a built-in generation function for several years now QR code, which contains all the necessary information for connection.
This digital barcode allows you to instantly transfer access keys simply through the camera of another device. You no longer need to spell out symbols or search for an entry in a notepad. However, the location of this feature may vary depending on the firmware version and the manufacturer's shell. In this article, we'll detail how to find and display this code on various devices.
It's worth noting that for this feature to work, your phone must already be connected to the network whose password you want to share. Security System Google Prevents code generation for networks to which the device doesn't have current or saved access. This protects user data from unauthorized profile copying.
Standard method via network settings
The most universal method that works on "clean" Android 10 and newer, as well as on many operating systems, is to use the Wi-Fi settings menu. This method doesn't require installing third-party software and is a built-in solution from the system developers. The interface may differ slightly, but the logic remains the same.
To get started, open the default Settings app and go to the Connections or Network & Internet section. Find and tap "Wi-Fi." Here you'll see a list of available networks, and at the top is the network you're currently connected to. This is the one we're interested in.
Click the active network name or the gear icon next to it. This will open a detailed connection information window, displaying the speed, frequency, and IP address. At the bottom of the screen or next to the network name, you should see a "Share" button or icon. QR code.
After clicking, the system will ask you to verify your identity. This could be by entering an unlock PIN, scanning your fingerprint, or using facial recognition. This security measure is necessary to prevent someone who picks up your unlocked phone from discovering your network password.
⚠️ Note: On some smartphone models with heavily modified skins (for example, older versions of MIUI or EMUI), the button may be called "QR code" and located directly on the main Wi-Fi settings screen, rather than inside the specific network menu.
After successful authentication, a square barcode will appear on the screen. Below it, usually in small print, is a duplicate of the password. You can share this screen with another user to point the camera at, or take a screenshot for future reference.
Using Quick Access and Widgets
Electronics manufacturers often add their own improvements to the interface. Android. Companies Samsung, Xiaomi And Honor We've implemented the ability to display QR codes directly in the Quick Settings panel or via desktop widgets. This speeds up access to network data.
In devices Samsung With One UI, it's easy to unlock your phone and point another device's camera at the lock screen or the Always-On display, if enabled. However, a more reliable method is to use the Settings widget.
- 📱 On the home screen, tap and hold an empty space to open the widget menu.
- 🔍 Find the "Wi-Fi Settings" or "Internet" widget in the list.
- ➕ Drag the widget to your desktop and select the network for which you want to display the code.
- 👁️ Now, when you click on the widget, the barcode will instantly open without having to dive deep into the menu.
This approach is especially convenient for office spaces or coworking spaces where Wi-Fi is always available. You can place the widget on a tablet that's always kept at the reception desk. Guests can scan the code without touching the administrator's device.
It's important to understand that widgets can consume additional battery power if they constantly update connection status. If power saving is a priority, it's best to use the standard settings method described in the previous section.
Features of interfaces from different manufacturers
World Android The interface is fragmented, and each vendor strives to make it unique. This also applies to the layout of network controls. Understanding the specifics of your phone model will help you find the options you need faster.
On smartphones Xiaomi (MIUI and HyperOS) After entering the Wi-Fi menu, tap the arrow or network name. The "Share" button is usually located at the very bottom of the screen. Huawei And Honor (EMUI/MagicOS) you need to tap on the QR code icon, which is located directly below the password entry field or next to the network name.
Below is a table to help you navigate popular brands:
| Brand / Shell | Path to function | Peculiarities |
|---|---|---|
| Samsung (One UI) | Settings → Connections → Wi-Fi → Gear | Share button at the bottom |
| Xiaomi (MIUI) | Settings → Wi-Fi → Tap on the network | Password confirmation required |
| Pixel (Stock Android) | Settings → Network & Internet → Wi-Fi → Gear | Share button below the QR |
| Huawei (EMUI) | Settings → Wi-Fi → Tap on network | The QR code is displayed immediately |
| Realme / OPPO | Settings → Wi-Fi → Tap on the network | The Share button at the bottom of the screen |
If you can't find the button on your device, the manufacturer may have hidden it in the "More" or "Advanced Settings" menu. It's also worth checking for system updates, as newer versions Android The interface changes frequently.
Connection history: access to saved network codes
One of the most useful features in modern versions Android (starting with version 10) is the ability to manage saved networks. You can display the barcode not only for the currently active connection, but also for any other network the phone has previously connected to.
This is extremely convenient if you've forgotten your home router password and the phone you need to connect to has already gone into sleep mode or been reset. You don't need to remember the password; all you need is a device that already knows the network.
To do this, go to the Wi-Fi menu and find the "Saved Networks" list (usually at the bottom of the list of available hotspots or in the three-dot menu in the corner). Select the desired network from your history. The system will again prompt you for biometric verification or a PIN code.
Why did you ask for a password when entering settings?
This is an Android security mechanism. The operating system protects stored WPA/WPA2 keys from access by apps and third parties by requiring device owner confirmation.
Once confirmed, you will see the same options as for the active network, including the generate button QR codeBy clicking on it, you'll receive the current barcode. This works even if the router is currently turned off or out of range, as the key is stored in the phone's memory.
What to do if the Share button is missing
Owners of devices based on Android 9 and older versions may encounter a problem: the system simply doesn't have a built-in QR code generator for Wi-Fi. In such cases, the operating system doesn't allow natively creating an image for scanning.
However, this isn't a dead end. You can use third-party apps from the store. Google PlayThere are many utilities, such as "WiFi Key Recovery" or "QR Code Generator," that can read saved passwords (on older Android devices) or generate codes based on the entered data.
Be careful when choosing such apps. Many of them require unnecessary permissions or contain aggressive advertising. Look for apps with high ratings and a large number of downloads. Alternatively, use online QR code generators through your browser.
⚠️ Note: Wi-Fi password recovery apps often require root access on older versions of Android. Without root access, they can only show you the password you entered yourself, but they won't be able to retrieve the system key from the secure area.
The most secure method for older phones is to manually enter the password into any online QR code generator. You enter the SSID (network name) and password, select the encryption type (usually WPA/WPA2), and the site will generate an image that can be saved to your gallery.
Technical nuances and data security
Using QR codes to transmit passwords is convenient, but it requires understanding some technical details. The code contains a string in the format WIFI:S:MyNetwork;T:WPA;P:MyPassword;;Anyone who scans this code will have full access to your network.
Therefore, avoid posting screenshots of access codes to public sources, social media, or sending them to public chats where others may be present. If you're printing the code for the office, it's best to obscure some of the characters or use a guest network.
- 🔒 Use your router's guest mode to generate codes to isolate your main network.
- 📸 Don't store screenshots of codes in the cloud without protection if they contain passwords for important networks.
- 🔄 Change passwords regularly if the code has been shown to a large number of temporary guests.
It's also worth considering that some corporate networks use complex authentication methods (such as 802.1x) that don't support simple password exchange via a standard Wi-Fi QR code. In such cases, manual certificate configuration will be required.
☑️ Security check before publishing code
Frequently Asked Questions (FAQ)
Is it possible to show a QR code if the phone is not connected to the Internet?
Yes, you can. If the network is saved in your phone's memory (you've connected to it before), you can generate a code even without an active connection to the router. However, if the network has never been used on this device, you won't be able to generate a code.
Why can't the other phone's camera see the code?
There could be several reasons: your phone's screen brightness is too low, there's a screen protector with glare, or the second phone's camera is too far away. Try increasing the brightness and moving the cameras closer (10-15 cm).
Does this method work on Android 8 and below?
Native QR code generation was introduced in Android 10. On older versions (Android 9, 8, 7), the code cannot be generated using the system's standard tools; a third-party app or manual data entry into the generator is required.
Is it safe to show the code to guests?
Showing the code is secure because the guest doesn't see the password in plain text; their device simply scans the data. However, after scanning, the guest gains full access to the network. For maximum security, use a separate guest VLAN.