Modern smartphones such as Samsung Galaxy A20, often serve as the primary device for internet access. We get used to Wi-Fi connecting automatically and rarely think about which security key is used for authorization. However, there comes a time when you need to connect a new gadget, laptop, or tablet to the network, and remembering a complex combination of characters is impossible. Fortunately, the operating system Android, starting with version 10, provides built-in tools for viewing saved networks.
To the owners Samsung A20 lucky, as this model received updates to the latest versions of the shell One UIThis means you don't need superuser rights or install questionable software. In most cases, the default system settings are sufficient. The key requirement for displaying the password is Android version 10 or higher, since in older versions (Android 9 Pie and below), system access to security files was blocked.
In this article, we'll take a detailed look at all the available methods for retrieving a forgotten access key. We'll cover standard methods using QR codes, cloud storage options, and specialized apps. It's important to understand that the security of your personal network depends on how well you store this data. Let's move on to practical steps.
Using the QR code feature in Android settings
The easiest and safest method, which doesn't require installing any additional software, is to use the built-in QR code generator. This method works on all smartphones. Samsung with the latest firmware version. The system automatically decodes the encrypted password and displays it in text format under the image.
First, you need to unlock your screen. Samsung A20 and go to the main menu. Find the icon Settings, which usually looks like a gear. In the list of options that opens, select the section ConnectionsThis is where all the parameters of your device's wireless interfaces are concentrated.
Next, click on the item Wi-FiYou'll see a list of available networks, with the network you're currently connected to displayed at the top. Click the gear icon to the right of the active network's name. A detailed connection settings menu will open.
Find the button at the bottom of the screen QR codeThe system will ask you to confirm your identity using a PIN, pattern, or fingerprint. After successful authentication, a square code will appear on the screen. Directly below it, often in small print, will be the password text. If there is no text, take a screenshot and open it using Google Lens or any QR code scanner—it will recognize the text automatically.
⚠️ Warning: Do not send screenshots of the QR code to strangers. Anyone with access to this image can instantly connect to your network, as the code contains complete authorization information.
View passwords through your Google Account
If you're a Google user, your Wi-Fi passwords may have automatically synced with your account. This is especially true if you've previously connected to this network from another Android device or through a browser. Google Chrome. Function Smart Lock and password managers store this data in encrypted form.
To check this information, open your phone settings and find the section GoogleIn the list of services, select the item Autofill, and then Google Autocomplete. Next, go to Google PasswordsHere, the device owner's identity may need to be re-verified.
In the list that opens, find the name of your wireless network. It may be displayed as the router's SSID. Clicking on it will reveal the password field, hidden by asterisks. Click the eye icon to see the password combination. This method is convenient because it allows you to retrieve data even if your phone is currently not connected to the network but has previously saved a login.
- 🔒 Access to passwords is protected by biometrics or the smartphone's PIN code.
- ☁️ Data is synced across all devices where you're signed in to your Google account.
- 📱 This feature works regardless of your router model or internet service provider.
Using third-party recovery applications
If standard methods do not work or you have an old version of Android installed, you can resort to the help of specialized utilities from Google Play MarketHowever, you should be extremely careful: many applications require root access, which may void the warranty. Samsung A20 and disrupt the operation of banking applications.
There are apps that run without root privileges, using the Accessibility API or other system backdoors. They scan saved configurations and attempt to extract data. Examples of such apps include various "WiFi Key Viewers" or "Password Revealers." Before installing, be sure to read reviews and check the permissions the app requests.
The process is generally standard: you install the app, grant it the necessary permissions to access your location and storage, and then scan your system. The program displays a list of all saved networks and their passwords. Be prepared for the free versions to be heavily ad-supported.
⚠️ Note: App interfaces and features may change following developer updates. Always verify functionality with the official description in the app store at the time of installation.
☑️ App Security Check
Comparison of password retrieval methods
The method you choose depends on your specific situation, software version, and access to your accounts. To help you navigate, we've compiled a comparison table of the main methods. It will help you quickly determine which path will be most effective for your needs. Samsung A20.
| Method | Requirements | Complexity | Security |
|---|---|---|---|
| QR code in settings | Android 10+ | Low | High |
| Google Account | Synchronization | Low | High |
| Third-party apps | Permissions/Root | Average | Average |
| Command line (ADB) | PC and debugging | High | High |
As can be seen from the table, the standard tools of the operating system Android are the most preferable. They don't require the installation of suspicious software and provide the highest level of data protection. Using third-party software is only justified in extreme cases when other options are unavailable.
Advanced Method: USB and ADB Debugging
For advanced users who are not afraid of the command line, there is a method using the Android debug bridge (ADB). This method allows you to extract the configuration file wpa_supplicant.conf, which stores all saved passwords in clear or hashed form. This requires a computer with the drivers installed. Samsung and ADB platform tools.
First, you need to activate the developer menu on your phone. To do this, go to Settings → About phone → Software information and press seven times quickly Build number. Then in the menu that appears Developer Options turn on USB debuggingConnect your phone to the PC using a cable.
On your computer, enter the command line to access the configuration file. The path typically looks like this: /data/misc/wifi/wpa_supplicant.confHowever, without root access, direct access to this file may be blocked even through ADB. In this case, this method requires rooting the device first, which we do not recommend for regular users due to security risks.
adb pull /data/misc/wifi/wpa_supplicant.confWhat to do if ADB doesn't detect the phone?
Make sure the debugging permission prompt appears on your phone's screen and tap "Allow." Also, try replacing your USB cable, as some cables only support charging.
Security measures and access control
Once you've learned your password, it's time to think about the security of your network. If the password is too simple or you suspect someone else has it, you should change it. You can change the access key through the router's web interface by entering its address (usually 192.168.0.1 or 192.168.1.1) in the browser.
It is recommended to use the encryption standard WPA2/WPA3, as older protocols (WEP, WPA) are easily cracked. The password must contain at least 12 characters, including uppercase and lowercase letters, numbers, and special characters. Changing your password regularly minimizes the risk of unauthorized access.
- 🛡️ Use complex passwords that cannot be cracked using brute force.
- 🔄 Change your access keys at least once every six months.
- 🚫 Disable the WPS function on your router, as it is a weak point.
Is it possible to find out the password without unlocking the screen?
No, this is not possible. Android's security system requires mandatory authentication (pattern, PIN, or biometrics) before viewing sensitive data, such as Wi-Fi passwords. This protects against data theft if your phone falls into the wrong hands.
What should I do if the QR code does not show the password text?
Some manufacturers or device skins hide the text password behind a QR code. In this case, take a screenshot and open it in the Google Lens app or any third-party QR code scanner. The app will recognize the code in the image and display a text string containing the password.
Will viewing the password reset the phone?
No, viewing saved passwords through system settings, Google Account, or secure apps is a standard feature and does not affect user data or device settings. Resetting is only possible with root access or a firmware update.