Modern smartphones, such as Samsung Galaxy A12, securely store network configurations, but situations often arise when the owner himself forgets the saved access key. The situation when you need to connect a new gadget to an already working network, but the password is lost, occurs everywhere in everyday life and the office.
Previously, the user required superuser rights or third-party utilities to extract cryptographic keys from system files. The situation has changed dramatically with the release of new versions of the operating system. Now owners Android can view passwords directly in the interface settings without complex intervention.
In this article we will analyze in detail all the available methods of restoring access for the model Galaxy A12. You will learn how to use standard system tools, how to read data through QR code and what to do if the firmware version does not support direct viewing of symbols.
It is important to understand that the methods may differ depending on what shell One UI is installed on your device. Settings interface is constantly updated, adding new security and user-friendliness features.
Built-in function for viewing passwords in Android 10-14
Starting with version Android 10, Google has introduced the ability to view saved networks. Owners Samsung A12who have updated to the latest versions One UIhave access to this function out of the box. This is the safest and simplest method that does not require the installation of additional software.
First, you need to get into the wireless connection management menu. Open Settings and select section Connections. Here is an item Wi-Fi, clicking on which will open a list of available and saved networks.
In the list, find the network to which you are already connected or which is saved in the device memory. Next to the network name there may be a gear icon or just the name. Click on it to open detailed information about the connection.
At the bottom of the network settings screen you will see a button QR code or an icon with a code image. Clicking this button generates a unique code for quickly connecting other devices. However, in recent updates Samsung, the password itself is often displayed in text form under this code.
- 🔑 Click on the eye icon next to the password field to see hidden characters.
- 📱 Scan the code with another phone to automatically connect to the network.
- 💾 Save a screenshot of the code for later use.
If the password is not displayed in text directly on the screen, the system may require confirmation of your identity. You will have to enter PIN code unlock the screen, fingerprint or use facial recognition. This is a measure of protection against unauthorized access to your data.
If the QR code button does not show the password in text, take a screenshot of the screen with the code and open it in the Google Lens application or Gallery - the phone will recognize the text and show the password.
Using a QR code to retrieve data
Method with QR code is a universal solution for those whose password text is hidden by asterisks. The visual code contains all the necessary connection string, including the encryption type and the access key itself.
Having generated the code on the screen Samsung A12, you can use a second smartphone or tablet to read it. The camera of a modern device will automatically recognize the Wi-Fi format and offer to connect, or will show a text line with data.
In the connection line, the data usually looks like this: WIFI:S:MyNetwork;T:WPA;P:MyPassword;;. The letter P before the colon indicates Password. All characters after the colon and up to the next semicolon are the search key.
⚠️ Attention: Do not post screenshots of your home network QR code on social networks. Anyone with a camera will be able to decipher the code and connect to your Internet.
If you don’t have a second device at hand, you can use the built-in image analyzer. In the gallery Samsung or through Google Assistant you can analyze the screenshot you took. The system will highlight the text information contained in the image.
This method is especially convenient when you need to connect devices that do not have a keyboard, for example Smart TV or printers, although in this context we solve the opposite problem - we find out the password to enter it manually.
Access to system files through the file manager
For devices with older firmware versions or for advanced users, there is a method of direct access to system configuration files. However, on modern Samsung A12 without root access this method is limited.
The system stores data about networks in a special file wpa_supplicant.conf. The path to this file usually looks like /data/misc/wifi/. Access to this directory is by default closed to normal applications for kernel security reasons. Linux.
If your phone was previously rooted, you can use a file manager with superuser rights, for example Root Explorer or Solid Explorer. By following the specified path, you can open the file in a text editor.
Inside the file you will find configuration blocks for each saved network. The information you are looking for will be in the line psk="your_password". This is the most reliable method, but it requires deep knowledge and carries risks.
| Access method | Required rights | Difficulty | Security |
|---|---|---|---|
| Android Settings 10+ | No | Low | High |
| QR code + Scanner | No | Medium | High |
| Wpa_supplicant file | Root | High | Low |
| Third-party applications | Often Root | Average | Average |
⚠️ Attention: Obtaining root access will void the device warranty Samsung and can lead to system failure if not properly actions.
Third-party applications from Google Play
The store Google Play presents many utilities that promise to show saved passwords. However, most of them require root access to work fully. Without them, the functionality of such applications is severely limited.
Applications like WiFi Password Viewer or WiFi Key Recovery trying to read system files. If you don’t have superuser rights, they often offer to create your own QR code to distribute the Internet, but do not show other people’s passwords.
There are applications that work through accessibility services (Accessibility Services). They can automatically click buttons in settings and copy the password to the clipboard, simulating user actions. This is a legal method that does not require hacking the system.
Be extremely careful when installing such software. Many free utilities contain aggressive advertising or collect data about your connections. Always check the permissions that the application requests during installation.
Why do many applications not work without Root?
The Android operating system isolates applications from each other (sandbox). An application cannot read another application's data or system files without explicit permission, which only gives root access.
Synchronization via Google account
Ecosystem Google offers the function of synchronizing Wi-Fi passwords between devices linked to the same account. If you previously logged into your Google account on another device Android, the password may have been saved in the cloud.
You can check this through a browser on a computer or any other device. Go to your settings Google Account section and go to the Security -> Password Manager.
A list of saved networks can be displayed here. Find the desired network name (SSID) in the list. When you click on it, the system will ask you to confirm your identity (enter your account password or code from SMS), after which it will show the saved key.
This method does not work for all networks and depends on the synchronization settings that were active at the time of the initial connection. However, it is a great fallback option if your phone is unavailable.
Make sure your Samsung A12 data synchronization is turned on. Go to Settings -> Accounts and archiving -> Account management and check the synchronization status for your Google account.
Synchronization via Google Account is the most reliable way to recover your password if your phone was reset to factory settings or lost.
Resetting the router settings as a last resort
If none of the software methods helped, and you critically need to change the password or connect a new device, physical access to the equipment remains. This applies to the router that emits the signal.
Most routers have a sticker with factory data on the case. There SSID (network name) and standard password (Wireless Key/Password) are indicated. If you have never changed these settings, the problem is solved in one minute.
If the password has been changed previously, you can reset the router to factory settings. To do this, you need to find the button Reset (often recessed into the case) and hold it for 10-15 seconds with the power on.
After resetting, all settings, including the network name and password, will return to the factory values from the sticker. You will have to reconfigure the Internet connection (enter your provider's login and password), but access to Wi-Fi will be restored.
- 🔄 Find the Reset button on the back panel of the router.
- ⏱️ Hold the button with a paper clip for about 15 seconds until the indicators blink.
- 🌐 Connect to the network with the factory password from the sticker.
⚠️ Attention: Resetting the router will turn off the Internet on all devices in the house. Make sure you have an agreement with your provider on hand to restore your WAN settings.
Can I find out the password for Wi-Fi if I have never connected to this network?
No, it is impossible to find out the password for a network to which your device has never connected and the data for which is not stored in memory without hacking the access point (router) itself. This is contrary to the WPA2/WPA3 security protocols.
Is it safe to use applications to view passwords?
Applications from the official Google Play store that do not require root access is usually safe, but have limited functionality. Applications that require root can be dangerous if the developer is unknown, as they gain complete control over the system.
Why is there no QR code button in Wi-Fi settings on my Samsung A12?
It may depend on the One UI skin version or regional firmware. Try updating your phone software. Also, this feature may be hidden if the network has specific corporate security settings.
What should I do if the phone asks for a PIN code and I forgot it?
If you forgot the screen unlock PIN code, which is required to view the password, you will have to reset the screen lock settings. This will delete biometric data, but will save personal files (photos, contacts) unless you completely reset the phone.
Can someone find out my password through a QR code?
Yes, if someone takes a photo of your screen with the QR code active. The code can be easily read by any smartphone camera. Never leave the screen with the code unattended and do not send its screenshots to strangers.