The situation when you need to connect a new device to a wireless network, but the access key has long been forgotten, is familiar to almost every user. It often happens that a smartphone automatically connects to a home access point, and we simply do not remember the combination of characters that we entered several months or years ago. Losing this information can be a serious problem if you need to share the Internet with guests or set up a new gadget.
Fortunately, the operating system Android in its modern versions provides built-in tools to solve this problem without the need to use complex third-party software. Starting with Android 10, Google engineers have introduced a convenient generation function QR codesthat allows you not only to quickly transfer connection data, but also view the saved key in text format. However, owners of older devices or specific models may encounter interface limitations.
In this article we will examine in detail all the current methods for restoring network access. We will consider both standard system capabilities and options using rights root or third-party utilities. It is important to understand that data security is a priority, so some methods require additional authorization or certain privileges in the system.
Built-in viewing function via QR code on Android 10 and newer
The easiest and safest way to find out a forgotten combination of symbols is available to users whose devices are running Android 10, 11, 12, 13 and newer versions. The developers have implemented a mechanism in which the data is encrypted into a graphical code, but at the same time they make it possible to see the text representation of the key. To do this, you do not need to install any additional applications from the store Google Play.
First of all, you need to go to the settings menu of your smartphone. Find the section responsible for wireless connections, which is usually called Wi-Fi or Connections. In the list of available networks, find the one you are currently connected to or a previously saved access point. Next to the name of the network there is often a gear icon or an arrow, clicking on which opens detailed information about the connection.
In the menu that opens, you will need to find a button Share or icon QR code. The system will ask you to confirm your identity by asking you to enter your screen unlock PIN, pattern or fingerprint. This is a necessary measure Securityto prevent unauthorized persons from accessing your network settings. After successful authentication, a square code will appear on the screen.
⚠️ Attention: On some shells, such as MIUI from Xiaomi or ColorOS from Oppo, the password text may be hidden stars directly below the QR code. In pure Android (Pixel, Motorola), the text may be missing, and then you will need to take a screenshot.
If the password is not written explicitly under the code, take a screenshot of the screen. Then open any QR code reading app or use the built-in scanner in your camera by pointing it at the saved image. Most modern decoders will automatically recognize the connection string and display it in the format WIFI:S:SSID;T:WPA;P:YOUR_PASSWORD;;. The required combination will be located after the symbol P:.
If the text under the QR code is too small and unreadable, increase the screen brightness to maximum before taking a screenshot - this will improve contrast and help third-party scanners better recognize details.
Viewing saved networks on older versions of Android
Owners of devices running Android 9 (Pie) and earlier versions face a more difficult challenge. These versions of the operating system lacked a convenient graphical interface for viewing security keys. The system stored this data in a protected system file, which was not accessible to normal applications in order to protect user information.
However, there are workarounds that do not require root access, but do not work on all phone models. Some manufacturers, such as Samsung or Xiaomi, added their own add-ons on top of the standard interface. In such cases, you should try going to the advanced Wi-Fi settings and look for the item Advanced or Network management.
Sometimes the backup function helps. If you previously created a full system backup through a Google account or the manufacturer's proprietary utility, network data may have been saved there. Restoring from such a copy to another device can automatically pull up the saved passwords, although you still won’t be able to see them in text form inside the backup without special tools.
For devices without root access on older versions, often the only way out is logging into the control panel of the router. If you have access to the router's web interface, you can find the wireless security section there and view or change the passkey. This method is universal and does not depend on the firmware version of your phone.
Using root access to access system files
The most technically complex, but also the most reliable method for older devices requires the presence of root rights (superuser). Obtaining such rights gives full control over the phone's file system, allowing you to read any configuration files, including those where network settings are stored. However, this process is fraught with risks and may void the device's warranty.
If your smartphone is already rooted, you will need a file manager that supports superuser rights, for example Root Explorer or Solid Explorer. When launched for the first time, the application will ask for permission to access system folders. You need to grant this permission by clicking the button Grant in the system pop-up window.
The path to the file containing all saved networks and passwords is as follows:
/data/misc/wifi/wpa_supplicant.confIt is in this text document that records in format network={ ssid="Network_name" psk="Password" }. By opening the file with the built-in text editor, you can find the desired network name (SSID) and see the corresponding key (psk) in clear form.
⚠️ Attention: Do not edit or delete lines in the file wpa_supplicant.conf, if you are not sure of your actions. An error in the syntax may cause the Wi-Fi module to stop working until the next reboot or reset.
There are also specialized applications in the app store, such as WiFi Password Viewerthat automate this process. They read the contents of a system file and display it in a convenient list. Such utilities also require permissions rootto operate, otherwise they will show a blank screen or an error message.
What to do if there is no wpa_supplicant.conf file?
On some modern devices with data encryption, the path may be different, or the file may be replaced with an SQLite database. In such cases, direct editing is not possible, and it is better to use viewer applications that know the actual paths for specific versions of Android.
Password recovery via computer and ADB
For users who do not want to get root access on the phone, but have access to a personal computer, there is a method using the debug bridge ADB (Android Debug Bridge). This tool allows you to send commands from your PC to your smartphone. However, it is worth noting that on modern versions of Android without root access, commands to read system files are often blocked by security policy.
However, on some devices with USB debugging enabled, you can try to display a list of settings. To do this, you need to install ADB drivers on your computer, connect your phone with a cable and launch the command line. The basic command for checking the connection looks like adb devices. If the device is shown in the list, you can try to run the request.
Trying to view settings through ADB without root often returns an empty result or an access error, since the file wpa_supplicant.conf is protected with read-only access rights by the system. However, if the phone has custom firmware installed or specific security settings have been changed previously, this method may work. The request command usually looks like this:
adb shell cat /data/misc/wifi/wpa_supplicant.confIf the command is successful, you will see the contents of the file directly in the terminal window on your computer. This is a convenient method, as it does not require installing file managers on the mobile device itself. Copying text from the terminal and finding the desired key is much easier than dealing with the small phone screen.
The ADB method only works when USB debugging is enabled and you have the appropriate access rights; on stock firmware of recent years, it is most often blocked by a security system without root.
Third-party applications and their limitations
In the store Google Play You can find hundreds of applications that promise to show your saved passwords in one click. However, it is important to understand how they work. Apps that don't require root access actually can't read the system password file due to Android sandbox limitations. They often simply duplicate the QR code generation feature if the system has one, or show passwords from networks you have previously connected to, but only if this data was stored in the cloud or accessible through open APIs.
Applications that require root work on the principle described above: they read a configuration file and parse it. Examples of such utilities include WiFi Key Recovery or ES File Explorer (in older versions with the root function). Before installing such software, be sure to check the permissions it requests.
- 📱 Storage access: necessary for saving screenshots or logs.
- 🔒 Root access: critical for reading Wi-Fi system files.
- 🌐 Network access: required to check the connection activity.
Be careful with free utilities from unknown developers. Some of them may contain advertising modules or collect statistics about your connections. Always read reviews and check the reputation of the developer before installing a app that requests deep access to your smartphone's system.
☑️ Checking the security of the application
Resetting the router settings as a last resort
If none of the software methods worked, and access to the network is vital, the physical method remains. It consists of resetting the wireless router to factory settings. This method is guaranteed to return the password to the value indicated on the sticker on the device, but has one significant drawback.
When you reset the router, all user settings are deleted: network name, encryption type, port settings and access restrictions. You will have to reconfigure your Internet connection (enter your login and password from your provider) if this data is not saved in the automatic configuration. Therefore, use this method only if you know the data for setting up the provider or they are not required (for example, with a Dynamic IP connection type).
To perform a reset, find the button on the back panel of the router Reset. Usually it is recessed into the body to avoid accidental pressing. You will need a paperclip or thin object to press and hold this button for 10-15 seconds until the lights on the front panel flash simultaneously. After rebooting, the device will work with factory settings.
| Method | Requirements | Difficulty | Risks |
|---|---|---|---|
| QR code (Android 10+) | No | Low | Absent |
| Root access | Superuser rights | High | Loss of warranty, risk of software failure |
| ADB Commands | PC, debugging enabled | Medium | Minimal |
| Reset router | Physical access | Low | Loss of Internet settings |
⚠️ Attention: Settings interfaces and menu item names may differ depending on the shell manufacturer (Samsung One UI, MIUI, ColorOS). If you do not find the described item, try using the search inside the phone settings menu.
Frequently asked questions (FAQ)
Can I find out the Wi-Fi password if I have never connected to it?
No, this is impossible. The phone stores only the data that was previously entered for a successful connection. To connect to a new network, you need to know the key in advance or use the WPS function (if it is supported by the router and is not disabled).
Is it safe to use applications to view passwords?
Using proven applications that are open source or highly reputable is relatively safe. However, applications that require root access gain full access to the system, so there is a theoretical risk of data leakage. Use such utilities only when absolutely necessary.
Why is there no "Share" button in the Wi-Fi settings on my Android 12?
It depends on the device manufacturer. Some brands hide this feature or implement it differently. Try clicking on the network name rather than the gear, or look for the “QR code” item in the top menu of the Wi-Fi section.
What to do if the QR code is not scanned by the camera?
Try using a third-party scanner application from the app store. Also make sure that the phone screen is clean and the brightness is turned up to maximum. If this does not help, you can send a screenshot of the code to another device and scan it there.
Does the password change after flashing the phone?
Yes, when you completely reset the phone to factory settings (Hard Reset), all saved data, including passwords from Wi-Fi networks, are deleted irrevocably. You will have to enter them again the first time you connect.