How to find the Wi-Fi password on a Samsung Galaxy A31: official and alternative methods

Forgot your home Wi-Fi password, and it's erased from your handwriting? Or do you need to connect a new device, but the network owner is unavailable? Samsung Galaxy A31 with firmware One UI (Android 10/11) The standard way to view saved passwords is blocked—the manufacturer has hidden this feature for security reasons. However, there are workarounds that don't require root rights or complex manipulations.

In this article we will analyze 3 working methods: from the official method (via a router) to little-known tricks with configuration files. Important: Some methods depend on the firmware version and may not work on custom builds. If you're unsure, use the first method; it's the most reliable and doesn't require access to the phone.

Please be advised: attempting to hack into other people's networks is illegal. All instructions below apply. only to networks that you own or have permission to access.

Method 1: Viewing the password through the router settings (100% working)

The most universal way is to access the router's web interface. It doesn't depend on the phone model and works even if Galaxy A31 not connected to the network. You will need:

• 🖥️ Any device (PC, tablet, other phone) with access to the same Wi-Fi network or connected to the router via cable.
• 🔑 Login and password for the router's admin panel (usually found on a sticker on the back of the device).
• 🌐 Web Browser (Chrome, Safari, Edge).

Instructions:

1. Find out Router IP address. Usually it is 192.168.0.1 or 192.168.1.1You can check it in the Wi-Fi settings on Samsung A31:

   Settings → Connections → Wi-Fi → [tap on your network name] → Network Management → Advanced

   Field Gateway - this is the router's IP.

2. Enter this address into your browser's address bar. A login window will open.
3. Enter your login and password (by default it is often admin/admin or admin/password).
4. Go to the section Wireless (Wireless Network) → Wireless Security (Safety) Here in the field Password or PSK Password The current password will be displayed.

⚠️ Attention: If you have never changed the login details for the router, but the default ones admin/admin If they don't fit, someone has already replaced them. In this case, reset the router settings using the button. Reset (hold for 10 seconds), but remember: this will disconnect all network users.

This method is suitable for all router models: TP-Link, ASUS, Keenetic, Zyxel, MikroTik and others. The interface may differ slightly, but the principle is the same: look for the Wi-Fi security settings section.

Method 2: Using a Wi-Fi Configuration File (Requires a PC)

On Samsung Galaxy A31 Network passwords are stored in an encrypted file wpa_supplicant.confIt can be extracted, but this requires access to the phone's internal memory via ADB (Android Debug Bridge). The method works without root, but requires USB debugging.

Step-by-step instructions:

1. Activate developer mode on Galaxy A31:

   Settings → About phone → Software information → Build number

   Click on Build number 7 times until the notification "You have become a developer" appears.

2. Return to Settings → Developer Mode and turn it on USB debugging.
3. Connect your phone to PC via USB cable (use the original cable for stability).
4. Download and install ADB Tools to the computer.
5. Open Command Prompt (Win + R → enter cmd) and execute the commands in order:

   adb devices
   adb shell
   su -c "cat /data/misc/wifi/WifiConfigStore.xml | grep -oP '(?<=pass=")[^"]+'"

   If you are prompted for superuser access, the method will not work without root.

If the command returns a list of passwords, copy the one you need. If not, try this alternative:

adb pull /data/misc/wifi/wpa_supplicant.conf

The file will be saved on your PC. Open it with Notepad—the passwords will be in the line psk="your_password".

⚠️ Attention: On some firmware versions Samsung file wpa_supplicant.conf may be empty or encrypted. In this case, the method will not work.

Enable developer mode

Enable USB debugging

Install ADB Tools on PC

Use the original USB cable

Trust the device on your phone-->

Method 3: Password Viewer Apps (with caveats)

IN Google Play There are apps that promise to show saved Wi-Fi passwords, for example WiFi Password Viewer or WiFi Key RecoveryHowever, on Samsung Galaxy A31 they work only with root rightsWithout them, applications will either show an empty list or request superuser rights.

If you still want to try:

• 📱 Install WiFi Password Viewer from Play Market.
• 🔍 Launch the application and grant access to memory.
• 🔐 If you see a list of networks with passwords, you're in luck. If not, this method isn't suitable for your firmware.

On Samsung A31 With One UI 2.5+ (Android 10/11), these apps won't work without root due to Samsung Knox security restrictions. An alternative is to use apps for backup Wi-Fi settings, for example Swift Backup, but they also require an unlocked bootloader.

Alternative methods (if nothing helps)

If none of the methods work, consider these options:

The fastest way from this list is connection via WPS. Click the button WPS on the router (usually on the back panel), then on Galaxy A31 go to:

Settings → Connections → Wi-Fi → Advanced → WPS Button

The phone will connect to the network without entering a password, but this method only works if WPS is enabled in the router settings.

Common mistakes and how to avoid them

When trying to find out a password, users often encounter these problems:

• 🔌 "ADB doesn't see the device" - Check if USB debugging is enabled, use the original cable and install the drivers Samsung USB Driver.
• 🔒 "The wpa_supplicant.conf file is empty." This is normal for newer versions of Android. Try this alternative: /data/misc/wifi/WifiConfigStore.xml.
• 📵 "The router does not open the web interface." - Make sure you are connected to his network (not the repeater), and try a different browser.
• 🛡️ "Samsung Knox is blocking access" - on devices with Knox Some system files are protected. There's no way to bypass this without root access.

If you see the message "adb: error: failed to get feature set: no devices", run in the command line:

adb kill-server
adb start-server

Safety: What Not to Do

In an attempt to find out a password, users sometimes perform dangerous actions that can:

• 🚨 Break the law — Hacking into other people's networks is prosecuted under Article 272 of the Russian Criminal Code ("Unauthorized access to computer information").
• 💥 Break the phone - incorrect commands in ADB or attempts to gain root may result in the device being bricked.
• 🕵️ Put your data at risk — Installing dubious Wi-Fi hacking apps often leads to virus infections.

⚠️ Attention: If you find instructions suggesting to use programs like Wifi Hacker or Wifi WPS WPA Tester - This is a scam. These apps don't work on modern networks. WPA3 and can steal your data.

The only legal way to access someone else's network is to ask the owner for the password. For public networks (cafes, hotels), the password is usually listed on the receipt or you can request it from the staff.

FAQ: Answers to Frequently Asked Questions

Is it possible to find the Wi-Fi password on a Samsung A31 without rooting or a computer?

No, this is not possible without root or a PC. Samsung Blocks access to system files with passwords for security purposes. The only option without additional devices is to access the router settings through your phone's browser (if you're connected to this network).

Why are there no passwords in the wpa_supplicant.conf file?

Starting from Android 10, Samsung encrypts Wi-Fi passwords and stores them in binary format. File wpa_supplicant.conf may be empty or contain encrypted data. Alternatively, a file WifiConfigStore.xml, but it is also protected Knox.

I reset my router, but the internet isn't working. What should I do?

After resetting your router, you'll need to reconfigure your internet connection. To do this:

1. Connect to the router via cable.
2. Go to the web interface (usually 192.168.0.1).
3. In the section WAN or Internet enter the data from the provider (login/password for PPPoE or select Dynamic IP, if the provider does not require authorization).
4. Save the settings and reboot the router.

The setup details are usually specified in the contract with the provider.

Is it possible to find out the password for a Wi-Fi network that my phone has connected to before but is now out of range?

Theoretically, yes, if the password is saved in the phone's memory. In practice, Samsung A31 You can't do this without root. Your only chance is if you have a backup of your phone created before the network was disconnected. Restore it on another device. Samsung and try to extract the password through ADB.

Do Wi-Fi hacking apps work on Samsung A31?

No, they don't work. Modern networks use protocols WPA2/WPA3, which cannot be hacked using mobile apps. All programs in Play Market, promising "Wi-Fi hacking" are either scams (they steal data) or only work with outdated networks WEP (which are almost never encountered).