Modern smartphones based on Android, especially devices from the company Samsung, store data about connected wireless networks with a high degree of security. However, the situation when you need to find out the saved Wi-Fi password arises quite often. For example, you bought a new router, forgot your access data, or a friend came to visit you and urgently needs to connect to the Internet, and you don’t remember the combination of characters.
Previously, solving this problem required superuser rights (root), which was unsafe and difficult for an ordinary user. Today, thanks to interface updates One UI and Google security standards, finding out your password has become much easier. In this article, we will examine in detail the legal and technical methods of extracting security keys directly from the screen of your gadget.
It is important to understand that access to this data is only possible if your phone has already been successfully connected to this network in the past. The Android system does not allow you to “hack” someone else’s network remotely, but willingly shares the saved keys with their rightful owner. We will look at both standard system tools and advanced methods for experienced users.
Standard method via QR code in settings
Starting with Android 10, Google has introduced a function for generating QR codes for quickly connecting other devices. In the shell One UI from Samsung this feature is implemented as conveniently and intuitively as possible. You don't need to install third-party applications or delve into system files.
First, open your device's settings. Go to section Connections, and then select item Wi-Fi. Here you will see a list of available networks. The network you are currently connected to will be at the very top of the list and have the “Connected” status. Click on the gear icon next to the name of this network.
In the network settings menu that opens, scroll down the screen. At the bottom you will find a button labeled QR code. By clicking on it, the system will generate a unique pattern lock. On most modern Samsung models, the network password is displayed in clear text directly below this QR code. This is the fastest and safest method.
If the password is not displayed in text under the QR code, just take a screenshot of the screen and open it in the Google Lens or Gallery application with the text recognition function - the smartphone itself will decipher the combination of characters.
⚠️ Attention: The function of displaying the password in text may not be available on some older models or in specific regional firmware. In this case, the password is encrypted inside the QR code itself, and to read it you will need another phone with a camera.
Using Google Lens for decryption
If your Samsung phone for some reason does not show the password in the text under the QR code, do not be upset. You can use Google's powerful computer vision algorithms that come pre-installed on most devices. The technology Google Lens is capable of reading and decoding data from graphic images.
Take a screenshot of the screen with the QR code of your Wi-Fi network, as described in the previous section. Then open the Gallery app and find that photo. On many Samsung smartphones, the image analysis button is built right into the photo viewing interface. If it is not there, click the "Share" button and select the icon Google Lens or “Search by picture.”
After analyzing the image, the system will display the recognized text on the screen. In the case of a Wi-Fi QR code, you will see a format string WIFI:S:MyNetwork;T:WPA;P:MyPassword;;. We are interested in the part after the symbol P: and before the double semicolon ;;. This sequence of characters is your password.
- 📸 Take a high-quality screenshot without unnecessary interface elements.
- 🔍 Make sure that the lighting during analysis (if you scan from another screen) is sufficient.
- 📝 Carefully check the recognized characters, especially the numbers 0 and the letter O, so as not to make a mistake when entering.
Viewing saved networks via ADB
For advanced users who prefer full control over the system or do not have access to a graphical interface (for example, when connecting via remote desktop), there is a method of using USB debugging. The protocol ADB (Android Debug Bridge) allows you to send commands directly to the operating system.
This method requires a computer with ADB drivers installed and the USB Debugging option enabled in the developer menu of your Samsung phone. The developer menu is activated by clicking seven times on the build number in the About phonesection. After connecting the cable, run the command to get a list of configurations.
adb shell dumpsys wifi | grep "mConfigKey"The result of the command will display a list of all saved networks and their security keys in encrypted or clear form, depending on the Android version and access rights. On older firmware versions, the password may be displayed in clear text immediately. On new versions of Android 10+, access to this file is limited, and the command may return empty results or hashes without additional privileges.
Why may ADB not show the password?
Starting with Android 10, Google has limited the access of applications and ADB commands to the wpa_supplicant.conf file without root access. Therefore, on new devices, this method often returns data in the form of hashes, which cannot be converted back into a password without special computing power.
Analysis of system files with root access
If your Samsung smartphone has an unlocked bootloader and superuser rights installed (Root), you get full access to the file system. This is a “kernel” method that allows you to look into the holy of holies of the system - the wireless connection configuration file.
You will need a file manager that supports root access, for example Root Explorer or Mixplorer. Follow the path /data/misc/wifi/. This directory contains the file WifiConfigStore.xml (on new devices) or wpa_supplicant.conf (on old devices). Open this file as text.
Inside the file you will find blocks Networkcontaining the parameters of each saved network. Look for the tag PreSharedKey. The value contained in this tag is your password in its purest form. Be extremely careful when editing this file: any extra comma or deleted character may cause the phone to no longer see all saved networks.
Rooting rights will void the warranty on your Samsung device and may trigger Knox protection, which will permanently disable some proprietary features, such as Samsung Pay.
Account synchronization Google
The Android ecosystem offers a convenient settings backup feature. If you have Google account synchronization enabled on your Samsung phone, Wi-Fi network data may have been saved to the cloud. This is especially useful if you have reset your phone to factory settings and want to restore access without manual entry.
When setting up a new device for the first time or after a reset, the system will offer to restore data from a backup copy. During the recovery process, Android phones can automatically pull up passwords from previously known networks. However, it is impossible to directly “pull” the password from the Google cloud through the web interface for viewing as text for security reasons.
However, this function works transparently for the user. As soon as you sign in to your account on any Android device, it will automatically try to connect to known networks within range using the saved keys. This eliminates the need to remember complex combinations of characters.
| Method | Difficulty | Requires Root | Android version |
|---|---|---|---|
| QR code in settings | Low | No | 10 and above |
| Google Lens | Low | No | Any |
| Teams ADB | High | Desirable | Any |
| Configuration file | Medium | Yes | Any |
Possible problems and limitations
Despite the abundance of methods, users may encounter a number of restrictions imposed by manufacturers or telecom operators. Some custom firmware from mobile operators may block the function of generating QR codes or hide the menu item with Wi-Fi settings.
It is also worth considering the security policy of corporate networks. If your Samsung phone is connected to enterprise Wi-Fi using security certificates (WPA2-Enterprise), you may not have the usual password. In such cases, authentication occurs through a digital certificate rather than through a text string.
⚠️ Attention: The menu interface and location of items may vary depending on the version of the One UI shell. If you do not find the described items, use the search in the settings by entering the request “Wi-Fi” or “QR code”.
Another common problem is the incorrect display of special characters. If your password contains rare characters or emoji, some decryption methods (especially through third-party QR scanners) may interpret them incorrectly. Always double-check the received data when trying to connect another device.
☑️ Check before resetting the settings
Frequently asked questions
Is it possible to find out the Wi-Fi password if the phone is not connected to it?
No, it is impossible. The phone stores only those passwords that were successfully used to connect. If the device has never connected to this network, the access key data simply does not exist in its memory.
Is it safe to show a QR code to other people?
It is safe to show a QR code, since it only allows you to connect to the network. However, if a person has the technical ability to read and decrypt the code, he will receive your password in text form. After this, he will be able to connect his devices or transfer the password to third parties.
Why is there no QR code button on my Samsung?
This may be due to an outdated version of Android (below 10) or a specific setting of your telecom operator. Try updating your phone software in the section Settings → Software update.
Is it possible to recover the password after resetting the phone to factory settings?
After a full reset (Factory Reset), all locally stored passwords are permanently deleted. You can restore them only if you had an active backup in your Google account, and you are restoring the data to a new device during the initial setup.
Does this method work on Samsung Galaxy Tab tablets?
Yes, the principle of operation of the One UI shell is the same for all Samsung devices, including smartphones and tablets. The interface and arrangement of elements will be identical if the software versions are the same.