Smartphone owners Samsung Galaxy A12 We often encounter situations where we need to connect another device, such as a laptop or tablet, to a wireless network, but the password is forgotten or written down in an inaccessible place. Fortunately, modern versions of the operating system AndroidStarting with version 10, users can view saved access keys directly in the device settings without the need for superuser rights. This significantly simplifies life for users who no longer fear losing access to their data.
The process of restoring network information on a device from Samsung It's become as intuitive as possible and takes just a few seconds. You don't need to install third-party apps or use complex commands via ADBAll you need is an unlocked screen and access to the settings menu. In this article, we'll cover all possible methods in detail, as well as discuss any issues that may arise depending on your firmware version.
It is worth noting that the appearance of the menu may differ slightly depending on the shell. One UI installed on your device. However, the logic remains the same across the entire South Korean giant's ecosystem. We'll cover both the standard QR code method and alternative options for cases where the standard approach is unavailable for some reason.
System requirements and Android versions
Before you begin searching for saved data, you need to make sure your software is compatible. The feature for displaying passwords in clear text was introduced in Android 10 and has been significantly improved in newer versions. On older systems, users had to rely on third-party utilities, which often required root privileges, which was unsafe.
Smartphone Samsung Galaxy A12 was originally supplied with Android 10, but already received updates to Android 11, Android 12 and even Android 13 depending on region and modification Interface One UI Hides some controls, making them accessible only after additional authorization. This is an important security measure that prevents data theft by unauthorized persons if the phone falls into their hands.
If your device is based on Android 10, you'll see a QR code, but the actual text password may be hidden or require additional steps to display. In versions Android 11 and newer versions, the security key text is displayed immediately below the QR code after successful biometric or digital verification. This makes the process as transparent as possible for the owner.
⚠️ Note: The Settings menu interface may change after major system updates. If you don't see this option, check for software updates in the "Software Update" section, as new features are often added this way.
Main method: viewing via QR code
The fastest and most reliable way to find a forgotten key is to use the built-in QR code generator. This functionality is built directly into the connection management system. You don't need to search through complex menus; simply follow the standard procedure, which works on most current firmware versions.
First, you need to go to the main settings menu of your Samsung A12Find the section responsible for wireless connections. Depending on your shell version, One UI, it may simply be called "Connections" or "Wi-Fi." Clicking this item will take you to a list of available and saved networks.
In the list of networks, find the one you're currently connected to or have previously used. Next to the network name, there should be a gear icon or a settings button. Tapping it will display detailed connection information. At the bottom of the screen or in the center (depending on the orientation), there will be a "QR code" button or a square code icon.
☑️ Action Algorithm
After clicking the code generation button, the system will ask you to confirm your identity. This can be by entering PIN code, a pattern, a fingerprint, or a facial scan. This is a critical security step that cannot be bypassed using standard means. After successful verification, a square code will appear on the screen and, in most cases, a text string containing the password below it.
Alternative methods for different versions of One UI
In some cases, the default path may be hidden or changed by interface developers. For example, in earlier versions One UI 2.5 at the base Android 10 The text password might not be displayed directly. In such situations, the user had to be resourceful and use screenshots or third-party recognition tools.
If there is no text under the QR code, take a screenshot of the screen with the code. Then open any app that can read QR codes from your gallery (for example, Google Lens (or a standard in-camera scanner). Point the camera at the screenshot you took, and the app will decrypt the code's contents, showing the connection string, where after the prefix WIFI:S: And T:WPA;P: the required key will be found.
There's also a method via the Quick Settings menu. Pull down the notification shade and find the icon. Wi-Fi and press and hold it for a couple of seconds. This will immediately take you to the network management menu, from where you can quickly access the settings for your active network. This life hack saves time if you're buried deep in other menus.
Why might the password not be displayed?
On some corporate or secure networks (Enterprise), the password may not be stored in cleartext due to organizational security policy. In this case, it won't be possible to view it using standard Android methods, as it isn't stored in a user-accessible keystore.
Using a Google account for synchronization
Ecosystem Google offers Wi-Fi password synchronization across devices. If you sign in to the same account on different devices, the keys can be automatically transferred. This is especially convenient if you need to connect a new device and the password on the old one is hardcoded.
You can check for saved data through Google settings. Go to Settings → Google → Autofill → Autofill from Google. There, in the "Wi-Fi Passwords" section, your connection history may be stored. However, on devices Samsung This path is often duplicated or replaced by a proprietary password manager. Samsung Pass.
To access Samsung Pass You must log in to your account Samsung AccountThis app stores encrypted data biometrically and allows you to view saved logins and passwords, including wireless network data if it's stored in this vault. This is a more secure storage method than a standard text file.
Syncing only works with an active internet connection. If you're trying to restore access after a full reset, make sure your initial account setup was successful. Without linking your account, restoring data from the cloud is impossible.
Compatibility table of methods and versions
To help you understand which method will work for you, we've prepared a summary table. It will help you quickly navigate depending on your device's year of manufacture and the operating system version installed. Keep in mind that the software build number may vary.
| Android version | One UI shell | Display password text | Authorization required |
|---|---|---|---|
| Android 10 | One UI 2.0 - 2.5 | Partially (via scanner) | Yes (PIN/Biometrics) |
| Android 11 | One UI 3.0 - 3.1 | Yes (full text) | Yes (PIN/Biometrics) |
| Android 12 | One UI 4.0 - 4.1 | Yes (full text) | Yes (PIN/Biometrics) |
| Android 13 | One UI 5.0+ | Yes (full text) | Yes (PIN/Biometrics) |
Third-party apps and root access
In situations where standard methods don't work (for example, on very old firmware or custom builds), users turn to third-party software. Applications like WiFi Password Viewer or WiFi Key Recovery can help, but they have one critical requirement - availability root rights.
Obtaining superuser rights (Root) on Samsung A12 — the procedure is risky. It triggers a flag. Knox, which permanently blocks Samsung Pay, Secure Folder, and some banking apps. Furthermore, this voids your manufacturer's warranty.
If you decide to take this step, installing root rights will allow any file manager with access to system folders to read the file. wpa_supplicant.confThis is where all passwords ever entered are stored in clear text. However, for the average user, this method is excessive and dangerous.
⚠️ Warning: Installing password viewer apps from unknown sources without root access is usually useless. Such apps often contain ads or malicious code, as the Android system blocks access to system password files for regular apps.
Troubleshooting and error resolution
Sometimes users encounter a problem where the QR code button is inactive or has disappeared. This could be due to a temporary system crash or an app conflict. First, try simply restarting your device. This is a universal solution for many minor software errors. Android.
If the issue persists, check whether "Data Saver" or "Maximum Power Saving" mode is enabled. These modes can limit system functionality, including the ability to generate codes. Disable them temporarily and check again.
It's also worth making sure your phone doesn't have any system modifications or themes installed that could obscure interface elements. Revert to the default theme. Samsung and check for the problem. If nothing helps, resetting the network settings (not a full reset of the phone!) may help.
Frequently Asked Questions (FAQ)
Is it possible to find out the Wi-Fi password if the phone is not connected to this network right now?
Yes, if you've connected to this network before and your phone has saved the connection profile. In the list of networks, find the desired name (SSID), even if the status is "Saved" or "Not Connected," and tap the settings gear next to it. A QR code will be generated based on the saved data.
What should I do if the QR code button is grey and cannot be pressed?
This means that the password for this particular network isn't stored in an accessible format, or it's a corporate network with security settings (802.1x). Also, check whether clipboard use or screenshots are disabled in the device's security settings.
Is it safe to show a QR code to other people?
No, it's not recommended. Anyone who scans this code will instantly gain access to your network without entering a password. Only share your screen with trusted people and lock your device immediately after use.
Where is the password file located on a Samsung A12 without root?
Without root access, direct access to system file /data/misc/wifi/wpa_supplicant.conf Closed. You can only see what the system interface allows (via QR code or settings). Direct file copying is not possible using standard tools.
Will my Wi-Fi password be reset when I update my system?
Usually when updating Android or One UI Over-the-air (OTA) downloads preserve all settings, including saved Wi-Fi networks and their passwords. A hard reset is required to reset the settings to factory settings.