Needing to connect a new device to a wireless network but having forgotten or lost the password is one of the most common situations in the digital world. Fortunately, modern operating systems Android Store data about previously connected networks in memory, allowing you to restore access if necessary. You don't need to be a cybersecurity expert or have access to the router's administrative panel to accomplish this.
In earlier versions of the operating system, access to this information was hidden from the average user and required superuser rights, known as root rightsHowever, starting with Android 10, Google introduced a native feature that allows sharing network access via a QR code, which encodes the necessary security key. This made the data recovery process significantly simpler and more accessible for a wider range of users.
In this article, we'll take a detailed look at all the current methods for obtaining password information. We'll cover standard methods for new OS versions, specific settings for devices from Samsung, Xiaomi, and other manufacturers, and also touch on data security. Understanding how the system manages network connections will help you better navigate your smartphone's settings.
Standard method for Android 10 and later
Starting with the tenth version of the operating system, the algorithm of actions has become unified for most devices. You do not need to install third-party applications or obtain extended access rights to the system. The main mechanism is based on the generation QR code, which contains all the necessary information for connection. This method is the most secure and recommended by the developers.
To get started, go to your gadget's settings menu. Find the section responsible for wireless connections and ensure Wi-Fi is enabled and the device is connected to the target network or within its coverage area. If you've previously connected to this network, its details are saved in your profile.
Click on the network name or the gear icon next to it to open the detailed menu. This displays the connection status, signal frequency, and IP address. At the bottom of the screen or next to the network name, you'll see an icon resembling a QR code. Clicking it starts the image generation process.
Once the QR code appears on the screen, the system may ask you to confirm your identity. This may involve entering PIN code, fingerprint unlocking, or facial recognition. This security measure prevents unauthorized access to your network data if they obtain an unlocked phone.
Key feature of the method: On some devices, the password is displayed in text directly below the QR code. If there is no text, take a screenshot and open the image in Google Lens or any QR code scanner to read the encrypted string.
⚠️ Note: On devices with a pure Android shell (e.g. Motorola, Nokia), the interface may differ slightly from devices with custom shells, but the logic of actions remains the same for the entire ecosystem.
Instructions for Samsung Galaxy owners
Devices from a South Korean company Samsung They run on the One UI interface, which has its own unique interface features. Viewing saved data is also done via a QR code, but the process may be slightly different. Owners of both flagship and budget models of this brand should pay attention to the menu's specifics.
Open Settings and go to "Connections." Select Wi-Fi. Unlike stock Android, you may need to tap the network you're currently connected to instead of the gear icon. If the network isn't active, find it in the list of saved networks.
In the window that opens, there's a "QR code" button at the very bottom. Click it. The system will request biometric or pattern authentication. After successful authentication, a code will appear on the screen for scanning. In some versions of One UI, the password is displayed directly below the code.
If the text isn't displayed, use a second smartphone with a camera or take a screenshot. Samsung Gallery has a built-in OCR feature that can read data from images. You can also use a standard code scanner.
The specifics of Xiaomi, Redmi, and POCO interfaces
Chinese manufacturer Xiaomi uses the MIUI shell (or HyperOS in newer models), which also provides convenient access to network data. The interface here is often more detailed, and users can find additional information about the connection channel and bandwidth.
Go to Wi-Fi settings. Tap the arrow to the right of the active network name or the information icon. In the menu that opens, you'll see a card with a QR code. In MIUI, this code often appears immediately, without having to navigate through a deep menu.
It's important to note that on some firmware versions, the password may be hidden behind asterisks even in the settings menu. In this case, scanning the QR code remains the only native method. The phone's camera will automatically recognize the code when you hover over it, and a line with the password will appear in a notification.
The algorithm is identical for Redmi and POCO devices. If you have an older version of MIUI (pre-12), the feature may not be available, in which case you'll need to use the alternative methods described below or update the software to the latest version.
⚠️ Note: In some regions and on certain MIUI versions, the password viewer feature may be restricted by law or operator settings. If the button is missing, check for system updates.
Using Google Lens and screenshots
If your screen doesn't display a password in text, but only a QR code, computer vision technology can help. Google Lens (Google Lens) is a powerful tool built into most modern smartphones that can analyze the image on the screen.
Take a screenshot of the screen containing the QR code. Then, open the Google Photos app, find the screenshot, and tap the "Lens" button (the camera icon). The system will analyze the image, highlight the code, and offer the option to "Follow the link" or "Show password."
This method is universal and works on any device, regardless of manufacturer. It's especially useful when you need to copy a password to manually paste it on a device without a screen, such as a printer or smart speaker.
Recognition accuracy depends on the quality of the screenshot and the contrast of the code. Make sure the code in the image is clear and not obscured by interface elements. If the recognition fails at first, try zooming in on the image before scanning.
What should I do if Google Lens doesn't see the code?
Try taking a screenshot in full-screen mode, cropping out any excess margins. You can also send the screenshot to another phone and scan it with the camera, if it has a QR code reader.
Third-party applications and root rights
For devices running Android versions below 10 or for those who prefer specialized software, there are password manager apps. However, it's important to understand that they require access to the system files where the keys are stored. WPA/WPA2, these applications will require superuser rights.
Obtaining root access is a complex process that voids the warranty and may lead to system instability. Apps like WiFi Password Viewer or ES File Explorer (in older versions) can display the contents of a file wpa_supplicant.conf, where all the data is stored.
If you don't have root access, the functionality of these apps is limited. They can only reveal the password for the current network via the "Share" feature, using the same QR code mechanism as the system. Trying to hack someone else's network with them is impossible and illegal.
Using third-party software carries security risks. You're giving an unknown developer access to your network settings. It's recommended to use only trusted apps from the official store. Google Play with a high rating.
☑️ Security when using third-party software
Comparison of methods and compatibility table
The method you choose depends on your operating system version and device model. Below is a table to help you navigate the available options for different situations. This table assumes standard system behavior, but exceptions may apply depending on your customizations.
Understanding the differences between these methods allows you to choose the fastest and most secure option. For example, a QR code is sufficient for a one-time guest connection, while restoring access to a computer requires a text copy of the key.
It's worth keeping in mind that corporate networks or networks with web-based (captive portal) authentication may not support the standard QR code password exchange mechanism in the same way it works for home networks.
| Method | Android version | Root is required | Security |
|---|---|---|---|
| QR code in settings | 10 and above | No | High |
| Google Lens | Any (with attachment) | No | High |
| Third-party applications | Any | Yes (for all networks) | Average |
| Viewing in a router | It doesn't depend | No | High |
⚠️ Note: Interfaces and menu item names may change after operating system updates. If you don't find the item described, try searching your phone's settings by entering "Wi-Fi" or "Network."
Frequently Asked Questions (FAQ)
Is it possible to find out the Wi-Fi password if I have never connected to this network?
No, this is impossible. The phone only stores data about the networks it has previously connected to. To access a new network, you must know the password in advance or have physical access to the router to reset it.
Is it safe to show a QR code to other people?
Yes, it's safe, but there's a caveat. Anyone who scans the code will have full access to your network. Don't show the code to strangers in public places. It's better to give the person your phone so they can point the camera themselves, or send them a picture via a secure channel.
What to do if the QR code does not scan?
Make sure there are no cracks in the screen area and that the brightness is set to maximum. Try taking a screenshot and enlarging it. You can also try a different QR code scanner, as recognition algorithms may vary between apps.
Where is the password physically stored in the Android system?
Passwords are stored in a system file /data/misc/wifi/wpa_supplicant.confAccess to this directory is closed by default to regular applications and users, providing a basic level of data protection from malware.