Smartphone owners Samsung Galaxy A31 We often encounter situations where we need to connect a new device to a wireless network, but the password for the current access point is forgotten or lost. Fortunately, modern versions of the operating system Android, in particular shells One UI, allow you to easily extract this information without requiring root privileges. This solution is native and safe for your device.
The main mechanism of this function is based on the security system. QR codes, which are generated by the system to quickly connect guests. This code contains an encrypted string with the network login and password, making the data recovery process as simple as possible. You won't need third-party applications or complex calculations.
In this article, we will examine in detail all the available methods for obtaining an access key, paying special attention to the interface Samsung One UIWe'll cover default settings, Google Cloud Backup capabilities, and methods for accessing the router's admin panel if code visualization is not possible for some reason.
Using the QR code feature in Settings
The fastest and most efficient way to view your saved access key is Samsung A31 — this is using the built-in QR code sharing feature. To do this, unlock your smartphone screen and go to the menu Settings. Next, select the section Connections and click on the item Wi-FiIn the list of available networks, find the one you're currently connected to and click the gear icon to the right of its name.
After going to the detailed network settings, you will see a button at the bottom of the screen QR codeWhen you click it, the system will ask you to confirm your identity using a PIN, fingerprint, or face scan. This is a standard security measure. Android, preventing outsiders from accessing your network data.
After successful authentication, a square code will appear on the screen. Below it, in small print, is typically a line like this: WIFI:S:MyNetwork;T:WPA;P:MyPassword;;Symbols after P: and until the next one ; or the end of the line is your password. If the text under the code is not visible or is too small, take a screenshot.
⚠️ Warning: Never send screenshots of this screen to strangers, as they will have full access to your home network and will be able to intercept transmitted data.
In some firmware versions One UI The password text may be hidden. In this case, use a second smartphone with a camera and QR code scanning capability (or the Google Lens app). Point the camera at the code on the screen. Samsung A31, and the device will automatically recognize the network and offer to connect, showing the password in a notification or in the scanner interface.
Viewing via Google Password Manager
If you have Samsung Galaxy A31 If syncing with your Google account is enabled, all saved Wi-Fi passwords are automatically copied to the search giant's secure storage. This allows you to access data even in plain text, without having to generate codes. Open the app. Settings on your device.
In the top search box of the settings, type "Google" or scroll down to the item GoogleInside the menu, find the section Autofill and select Google Autocomplete. Next, click on the button Google Password Manager (or simply "Passwords"). Here you will need to undergo biometric verification.
In the list of all saved credentials that opens, find the name of your Wi-Fi network. The list is sorted alphabetically or by date last used. Clicking on the desired line will reveal the login (usually the network name) and the password field, hidden by dots. To reveal the characters, click the eye icon.
- 🔒 Data is securely encrypted and accessible only after confirmation from the device owner.
- 🔄 Synchronization occurs automatically each time you successfully connect to a new network.
- 📱 You can access your passwords from any device where you're signed in to your Google account.
This method is especially useful if your smartphone's screen is broken and the touchscreen doesn't respond well to taps near the QR code button. The password manager menu is easier to navigate. It's also the only legal way to find out the password if you can't connect to the network right now but previously saved it to this account.
Login to the router control panel
If software methods on the phone itself don't work, you can try to find the password through the router settings. To do this Samsung A31 must be connected to the network (even without the Internet). Open a browser (Chrome, Samsung Internet) and enter the router's IP address in the address bar. Most often, this is 192.168.0.1 or 192.168.1.1.
The system will ask for a login and password to access the admin panel. By default, on many devices this is admin And admin (or the password field is empty). However, if you've ever changed this information for security reasons, you'll need it. If you haven't changed the factory settings, the information is often written on a sticker on the bottom of the router.
After successful login, the interface may differ depending on the manufacturer (TP-Link, ASUS, D-Link, Zyxel). You need to find the section related to wireless network. It may be called Wireless, Wi-Fi, Wireless mode or WLANLook for the subsection inside Wireless Security or Security settings.
| Manufacturer | Menu section | Where to find the password |
|---|---|---|
| TP-Link | Wireless / Wireless Security | Wireless Password field |
| ASUS | Wireless network | Authentication Method / WPA Key |
| D-Link | Wi-Fi / Security Settings | PSK key |
| Zyxel | Network / Wireless | Pre-Shared Key |
Once you find the appropriate field, you'll see the password. In some interfaces, it's hidden behind asterisks. There's often a checkbox next to the input field. Show Password (Show password), which allows you to see the characters in plain text. Then, write them down and use them to connect other devices.
⚠️ Warning: Changing settings in the router control panel (for example, changing the encryption type) may temporarily disconnect all connected devices until they reconnect with the new settings.
☑️ Check before logging into the router
Third-party applications and their limitations
In the store Google Play There are many apps that promise to show Wi-Fi passwords with one click. However, on modern versions Android (starting from version 10 and above, which is relevant for Samsung A31) Google's security policy strictly limits app access to system files where encryption keys are stored.
Most of these programs without root access can only display a QR code (which can be generated using standard tools) or brute-force passwords from a public key database. Actual file access wpa_supplicant.confThe data storage area is closed to regular applications. Attempts to circumvent this restriction often result in the installation of adware or viruses.
However, there are legitimate network management utilities that can be useful. They don't crack passwords, but rather help analyze connections. An example is the app WiFi Analyzer, which shows detailed information about the channel and signal, but unfortunately does not display the access key itself without superuser rights.
Why don't apps work without Root?
The Android system uses isolated storage for each app. Only processes with kernel privileges have access to system network configuration files. Without rooting, no app from the Play Store can read this file directly for user security reasons.
If you do decide to use third-party software, carefully read the permissions it requests. If a simple "flashlight" or "Wi-Fi manager" requires access to your contacts, microphone, or SMS, it's a clear sign of malware. Trust only trusted developers and official tools.
Resetting network settings as a last resort
In situations where none of the above methods helped (for example, the password for the router admin panel is forgotten, and the QR code cannot be read), you can consider the option of resetting the network settings on the router itself. Samsung A31This action will delete all saved Wi-Fi networks, Bluetooth settings, and mobile networks, returning them to factory defaults.
This method won't show you the password directly, but it's necessary if the system isn't working properly and preventing you from connecting. After resetting, you'll have to re-enter the password for each network. If you don't remember the password for any network, this step only makes sense after resetting the router itself using the reset button. Reset on the case, which will return the factory password indicated on the sticker.
To reset your phone: Go to Settings → General settings → Reset. Select an item Reset network settingsConfirm the action. After rebooting, the phone will be cleared in terms of network connections.
- 📶 All saved Wi-Fi hotspots are deleted.
- 📵 Bluetooth pairing settings are reset.
- 📱 The default mobile network settings (APN) are restored.
⚠️ Note: Resetting network settings does not delete your personal files, photos, contacts, or installed apps. It only affects your connection configuration.
Frequently Asked Questions (FAQ)
Is it possible to find out my neighbors' Wi-Fi password using my Samsung A31?
No, this is impossible using legal methods. WPA2 and WPA3 encryption protocols reliably protect data transmission. Brute-forcing a password on a mobile device would take years, and using specialized interception tools requires sophisticated equipment and extensive knowledge, and is illegal without the network owner's consent.
What to do if QR code is not displayed on Samsung A31?
Make sure you're in the menu of an already connected network (by clicking the gear icon), and not just in the list of networks. Also, check if your phone's firmware is updated to the latest version via Settings → Software updateIn older versions of Android, this feature may not have been available or may have worked differently.
Where can I find the factory password if I haven't changed it?
The factory password (or PIN for WPS) is almost always located on a sticker on the bottom or back of the router. Look for the lines Wireless Password, WPA Key or PINIf the sticker has worn off and the standard ones admin/admin If they don't fit, you'll have to do a full reset of the router using the button. Reset.
Is it safe to save passwords in a Google Account?
Yes, this is considered a secure method. Data is encrypted during transmission and storage. Access is protected by two-factor authentication and your device's biometrics. This is more secure than storing passwords in a paper notebook, which is easily lost.