Connecting a new device to your home network but forgetting the password is one of the most common problems with modern technology. Smartphone owners Samsung Galaxy A31 Often, families need to quickly restore access without accessing their router settings or asking other family members. Fortunately, Android, starting with version 10, provides built-in mechanisms for viewing saved security keys, making the process as simple as possible.
Unlike older firmware versions, which required root access or third-party applications, the modern interface One UI from the company Samsung Allows you to extract this information using standard tools. You don't need to be an IT expert or risk your device's warranty by gaining extended access rights. All you need is physical access to an already connected smartphone and knowledge of the specific menu section that contains the required information.
In this article, we will examine in detail all the current methods for recovering forgotten data for Internet access on the model A31We'll cover both standard methods like QR code generation and more advanced options for experienced users. Understanding these processes will help you stay online and easily share access with guests.
Using the QR code feature to view your password
The fastest and most reliable way to find out a forgotten security key is Samsung Galaxy A31 is to use the built-in QR code generator. This feature was introduced in Android to simplify the process of connecting friends' devices, but it also serves as a great tool for visualizing hidden data. You won't need to install any additional apps from Google Play, since the system already contains all the necessary components.
To get started, you need to open your device's settings and go to the section responsible for wireless connections. On smartphones Samsung This path usually looks like this: Settings → Connections → Wi-FiHere you'll see a list of available networks, with the currently active network marked with a switch icon or the word "Connected." This is the one we'll be working with.
Click on the active network name or the gear icon to the right of it to open the detailed configuration menu. At the bottom of the screen, next to the "Disable" button or under the signal graph, you'll find a button labeled QR code or QR CodeWhen you tap it, the system will ask you to verify your identity using biometric data (fingerprint, face scan) or your screen unlock PIN. This is a security measure to prevent unauthorized access to your data.
After successful authorization, a square code will appear on the screen. Below this image, usually in small font, is a line of text beginning with the prefix WIFI:S:, followed by the network name, and P:, followed by the password you're looking for. If the text underneath the code is illegible or hidden, you can take a screenshot and open it in Google Lens or any other QR code scanner, which will recognize the text in the image and show you the clear password.
⚠️ Attention: Don't send screenshots of the QR code to strangers. Anyone with this code can instantly connect to your network without your knowledge.
View saved networks in Android settings
Operating system functionality Android on board Samsung A31 Allows you to not only view the current network but also manage a list of saved connections. This is especially useful if you want to know the password for a network your phone has previously connected to but is now out of range. One UI groups this data in a user-friendly form.
To access the network archive, go to the menu again Settings → Connections → Wi-FiIn the upper right corner of the screen, click the button with three vertical dots, which opens an additional action menu. Select the option from the drop-down list. Additionally, and then find and click on the option Network management or Saved networks (the name may differ slightly depending on the firmware version).
You'll see a list of all networks ever saved on this device. Select the desired network from the list. The system will again ask you to confirm your identity via biometrics or a password. Afterward, a window will open with a QR code and, often, text information underneath. This method works identically for all Android versions starting from 10, making it easier to connect. Galaxy A31 fully compatible with this security protocol.
It's important to note that if you're using a very old version of the software that hasn't been updated by the manufacturer, this interface may look different or be absent. In this case, it's recommended to check for system updates through the menu. Settings → Software Update → Download and Install. Latest security patches and functional improvements from Samsung New network management capabilities are frequently added.
Using Google Chrome to sync passwords
Many users forget that the browser Google Chrome, installed by default on Samsung A31, has a powerful password manager. If you've ever logged into your router settings via a browser or saved access credentials for synced guest networks, this information may have been saved to your Google account. This is an alternative that doesn't require access to your phone's system settings.
To check, open the application Chrome On your smartphone or computer, where you're signed in to the same Google account. Tap the three dots in the upper-right corner (or lower, depending on your screen orientation) and select SettingsIn the menu that opens, find the section Autofill or go directly to the item Passwords (In some versions it is located under "Privacy and Security").
In the list of saved passwords, use the search bar to find your Wi-Fi network name (SSID). If the data has been saved, you will see an entry with the router name. Click it. To view the hidden password field, the system will ask you to complete biometric verification or enter the screen unlock code. The password will then become visible, and you can copy it to the clipboard.
This method is especially effective if your phone was reset to factory settings but you have a cloud backup. When restoring data from a Google account, Wi-Fi passwords are often restored automatically, allowing the phone to connect to known networks without re-entering. However, viewing the password text through the phone settings after a reset will still require reconnecting or using a cloud password manager.
| Method | Necessary rights | Complexity | Internet access is needed |
|---|---|---|---|
| QR code in settings | No | Low | No |
| Google Password Manager | Google account | Average | Desirable |
| Applications (Root) | SuperUser | High | No |
| Login to the router | Access to the admin panel | Average | Yes (mobile) |
Third-party applications and root rights
For users who prefer to have full control over their device Samsung A31, it is possible to obtain superuser rights, known as RootHaving these rights allows applications to read system files, including the file wpa_supplicant.conf, where access keys are stored in cleartext (or hashed, depending on the Android version). However, this approach is associated with certain risks.
Obtaining Root Rights on Modern Devices Samsung often triggers security flags KnoxThis will permanently block some secure apps, such as Samsung Pay, Samsung Pass, and some banking apps. It may also void your device's warranty. Therefore, you should only use this method if you fully understand the consequences and have no other options.
If you've already obtained root access, you can use specialized utilities from the app store, such as WiFi Password Viewer or similar apps. These programs request permission to access system files and instantly display a list of all saved networks with passwords. The process is as follows:
- 📲 Install a password viewer app from a trusted source.
- 🔓 Grant the app superuser (Root) rights when it's first launched.
- 📋 Copy the desired password from the list to the clipboard.
⚠️ Attention: Installing apps from untrusted sources that require root access can lead to theft of your personal data. Use only trusted, open-source software.
What is the wpa_supplicant.conf file?
This is a system file in Linux and Android that contains wireless network configurations. In older versions of Android, passwords were stored there in plaintext, but in newer versions (Android 10+), access to it is completely blocked without root access.
Login to the router control panel
If the phone Samsung A31 If you're connected to the network but can't view the password using standard tools (for example, due to carrier restrictions or custom firmware), you can try accessing the router's settings. This method is universal and works on any device with access to the local network.
You will need to know the gateway IP address. Android This can be done by going to Settings → Connections → Wi-Fi, click the gear icon for your active network, and scroll down to "Details." The "Gateway" address will be listed there (usually 192.168.0.1 or 192.168.1.1). Enter this address into the address bar of any browser on your phone.
The router's login page will open. If you've never changed the default login and password, they're often found on a sticker on the bottom of the router (e.g., admin/admin). Once in the menu, find the section Wireless or Wireless mode, then Wireless SecurityThere in the field PSK Password Your password will be listed under "Security Key." You can change it to a more complex one or simply rewrite it.
This method also allows you to change the network name (SSID) and encryption type. It is recommended to use the encryption standard WPA2-PSK or WPA3, as they provide the best protection against hacking. Older WEP protocols can be easily broken with specialized software in a matter of minutes.
☑️ Network security check
Possible problems and their solutions
In the process of restoring access, users Samsung A31 You may encounter a number of technical difficulties. Most often, the problem stems from a malfunctioning network module or a software conflict. If the QR code button is inactive or grayed out, try restarting your smartphone. This simple step clears the network service cache and often resolves the issue.
Another common issue is the lack of a password view button on devices running custom firmware or stripped-down versions of Android. Owners Galaxy A31Routers purchased from some carriers may have interface limitations. In this case, the only safe option is to log into the router's control panel or physically inspect the provider's device, if access is available.
It's also worth considering that if the network is corporate or educational (using certificates), a simple password may not be available. Access to such networks Enterprise This is accomplished using the user's login and password or a digital certificate. In this case, finding the "Wi-Fi password" in the traditional sense is impossible, as the 802.1x protocol is used.
If none of these methods help, you can reset your network settings. This will delete all saved Wi-Fi networks and Bluetooth pairings, but will not affect your personal photos or contacts. Here's how to reset: Settings → General Settings → Reset → Reset Network SettingsAfter this, your phone will be as good as new in terms of connections, and you can enter the correct password if you remember it or find it on another device.
⚠️ Attention: The menu interface may vary slightly depending on the One UI version and regional firmware. If you can't find the item you're looking for, use the settings search (the magnifying glass at the top of the settings screen).
Are Wi-Fi hacking apps safe to use?
No, most of these apps in open stores are either broken or contain malicious code. Real security audit tools require extensive knowledge and root privileges, and using them to access other people's networks is illegal.
What should I do if the QR code cannot be read by another phone?
Make sure the screen isn't cracked in the code area, the brightness is set to maximum, and the second device's camera is clean. Also, check if the second smartphone supports your network's encryption standard (some older devices don't support WPA3).
Is it possible to find out the password if the phone is not connected to this network?
Without root access and access to the router—no. Android only stores passwords for networks to which the device has successfully connected at least once. If the phone doesn't "remember" the network, it has no password information in its memory.
Does power saving mode affect password display?
In rare cases, aggressive power saving settings Samsung may restrict background system services, causing menus to display incorrectly. Try disabling power saving mode and restarting your phone.