The situation when you need to connect a new gadget to a wireless network, but the password is forgotten, is one of the most common problems of modern users. Often we connect automatically and do not remember the combination of characters until there is an urgent need to share access with guests or configure the router again. Restoring access it is possible to access the network directly from a mobile device if it has previously been successfully paired with an access point.
Previously, the procedure for retrieving saved encryption keys required complex manipulations with system files and the presence of superuser rights. However, with the release of Android 10 and subsequent versions, the situation has changed dramatically in favor of convenience. Now the operating system provides built-in tools for viewing and transferring credentials without the need for deep intervention in the file structure of the device.
In this article we will analyze in detail the standard methods for current versions of the OS, and also consider methods for outdated models that require additional software. You will learn how to generate a QR code for fast data transfer and where network configuration files are physically stored deep in the system.
Native features in Android 10 and later
Starting with the tenth version of Google's mobile operating system, the function of viewing saved networks has been integrated directly into the settings interface. This is the safest and simplest method that does not require the installation of third-party software. To get started, you need to go to the section Settings and select Wi-Fi or Connections, depending on the shell of your smartphone.
In the list of available and saved networks find the one you are currently connected to, or select a previously saved access point from the archive. Clicking on the gear icon next to the network name will open a detailed configuration menu. Here, at the bottom of the screen or under the “Share” button, the system will offer to generate QR code.
Under this code, text with the network name and password is usually displayed in clear text. If the text string is hidden by asterisks, you can still use this code to connect another device. Just point the camera of the second smartphone at the image, and the connection will happen automatically without manually entering characters.
If the password is not displayed in the text under the QR code, take a screenshot of the screen and open the image in any application for reading QR codes or in Google Lens - it will decrypt the data instantly.
It is worth noting that the interface may differ slightly on devices from different manufacturers. For example, on Xiaomi with the MIUI shell, the view button can be a separate item, and on Samsung with One UI, additional authentication via a fingerprint will be required before displaying secret data.
⚠️ Attention: To view the password through the system menu, the device must be unlocked. The system will ask for identity verification (PIN code, pattern or biometrics) for security purposes before displaying sensitive information.
Using a QR code to transfer data
The technology for quickly transmitting network settings via a visual marker has become an industry standard. This method not only allows you to see the password itself, but also serves as an excellent tool for guest access. You don't need to dictate a complex combination of letters and numbers, risking the wrong case.
The code generation process is intuitive, but it is important to understand how it works. The smartphone encodes the format string WIFI:S:Network Name;T:WPA;P:Password;; into a graphic image. Any device that supports the standard will be able to read this string and automatically apply the connection settings.
- 📱 Open the Wi-Fi settings on the already connected device.
- 🔍 Click on the desired network and select the option “Share” or QR icon.
- 📸 Point the camera of the second phone at the code that appears on the screen of the first one.
- ✅ Confirm the connection on the second device in a pop-up notification.
If you do not have a second device at hand, and you need to find out the password by text, you can use any third-party scanner barcodes on the same phone. Take a screenshot of the screen with a QR code, open the scanner application, select the “Scan from Gallery” function and upload the captured photo.
This method is universal and works regardless of the brand of smartphone, be it budget Realme or flagship Pixel. The main requirement is the presence of a working camera and basic software for decoding images, which is pre-installed on most modern devices.
Viewing passwords on older versions of Android
Owners of devices with an operating system version lower than Android 10 are less fortunate. In these versions system restrictions do not allow you to view saved security keys through the standard settings menu. The information is stored in encrypted form in the system partition, access to which is closed to ordinary applications.
The only software way to retrieve data on such devices is to obtain superuser rights, or root access. This procedure gives complete control over the file system, but carries certain risks, including the possibility of losing the warranty and potentially turning the phone into a “brick” if done ineptly.
After obtaining Root access, you will need a specialized file manager that can work with system directories, for example, Root Explorer or RE Manager. You need to follow the path /data/misc/wifi/ and find a file named wpa_supplicant.conf.
cat /data/misc/wifi/wpa_supplicant.confBy opening this file with a text editor, you will see a list of all networks to which the device has ever connected. The password you are looking for will be in the line psk="your_password" next to the network name (ssid). Be extremely careful when editing this file: any unnecessary changes to the syntax may cause the Wi-Fi module to malfunction.
⚠️ Attention: Obtaining root access will void the warranty on the device and may disrupt the operation of banking applications and services with increased security protection (Google Pay, banking clients).
Alternative for older versions without Root
There are applications like WiFi Key Recovery that claim to work without root access, but on modern versions of Android they show only stubs or require a paid subscription for a function that is built into the system for free. On older Android (versions 4-5) they could work due to vulnerabilities that have long been closed.
Third-party applications for restoring access
In the store Google Play there is a wide range of utilities that promise instant display of saved passwords. However, their effectiveness directly depends on the version of your operating system. On Android 10+, such applications are often duplicates of system functionality or simply shortcuts to open a standard QR code menu.
For devices without root access, most of these apps are useless due to the security policy sandboxisolating application data from each other. However, some utilities can help analyze the security of the current network or check the connection speed, but not extract the encryption key.
If you do decide to use third-party software, pay attention to the permissions that the application requests. Avoid appsthat require access to contacts, microphone or location without an explicit need for their functioning. This may be a sign of the collection of personal data.
| Application name | Presence of Root | Functionality | Security |
|---|---|---|---|
| WiFi Key Recovery | Requires | Displaying passwords from conf | Average |
| WiFi Password Viewer | Required | Export lists | Average |
| QR Code Scanner | Does not require | Reading screenshots | High |
| WiFi Analyzer | Does not require | Signal analysis | High |
On modern smartphones, third-party applications are redundant: use built-in QR code generation function in Wi-Fi settings for maximum security and convenience.
Login to the router control panel
If the phone is not connected to the network or you have reset its settings, you can find out the password through the web interface of the router itself. This method is universal and does not depend on the Android version or whether you have superuser rights. You will need any browser and a connection to the router via cable or Wi-Fi (if you know the login password, but want to change it).
Open your browser and enter the gateway IP address in the address bar. Most often this is 192.168.0.1 or 192.168.1.1. The exact address, as well as the default login and password, are usually indicated on a sticker on the bottom of the device. Standard credentials are often a combination admin/admin.
After authorization, go to the wireless network section (Wireless or Wi-Fi Settings). In the security subsection (Security) you will find a field with the current password. Here you can not only view it, but also change it to a more reliable one, after which you will need to reconnect all devices in the house.
The interfaces of routers from different manufacturers (TP-Link, ASUS, D-Link) may differ visually, but the logic of the settings remains the same. Look for tabs with the words “Wireless mode”, “WLAN” or the antenna icon in the navigation menu.
⚠️ Attention: If you change the password in the router settings, all previously connected devices will lose connection to the Internet and will require manually entering a new combination to re-pair.
☑️ Checking access to the router
Precautionary measures and network security
Storing passwords in clear text or easy access to them through QR codes creates certain risks. If your phone falls into the wrong hands in an unlocked state, an attacker can easily gain access not only to your network, but also through it to other devices on the local network.
It is recommended to regularly update the security keys of your home network, especially if you often provide access to guests. Use the encryption type WPA2 or WPA3, since the outdated WEP standard can be cracked in a few minutes by special utilities.
It is also worth disabling the WPS (Wi-Fi Protected Setup) function in the router settings. Despite the convenience of connecting without entering a password, this protocol has known vulnerabilities that allow you to guess the PIN code and gain access to the network without the owner’s knowledge.
Remember that the physical safety of the device is the key to the security of your data. Use a reliable screen lock method: a complex pattern or long PIN is more reliable than a simple swipe or Face ID in low-light conditions.
For guest access, set up a separate guest Wi-Fi network in the router. This isolates guests from your personal devices (printers, NAS storage) and makes it easy to change the password for guests without touching the main network.
Frequently asked questions
Can I find out the Wi-Fi password if I have never connected to this network?
No, it is not possible. The phone stores only the data that was entered upon successful connection. If the device has never connected to a given access point, there is no encryption key information in its memory. The only option is to ask the network owner for the password or look at it on the router case.
Why is there no “Share” button with a QR code on my Android 11?
Some shell manufacturers (for example, older versions of MIUI or specific builds for certain regions) could hide this function or move it. Try clicking on the eye icon next to the password field or long-pressing the network name in the list of saved ones. Also check for system updates.
Is it safe to use Wi-Fi hacking apps?
Strongly not recommended. Most of these applications in official stores are fakes that collect user data or contain malicious code. Legitimate utilities only show saved passwords, but do not guess them. Password guessing (brute force) is an illegal action.
What to do if the wpa_supplicant.conf file is empty?
This means that there are no saved networks in the phone's memory. This happens after a hard reset or if you have never connected to Wi-Fi on this device. It is impossible to restore data deleted from there without a backup copy.
Can someone steal my password via a QR code?
Theoretically, yes, if someone takes a photo of your screen with an active QR code. Therefore, do not show the screen with the code to strangers and do not publish its screenshots on social networks. After use, it is better to close the code.