How to find your Wi-Fi password using a QR code on your phone

Modern smartphones have greatly simplified the process of connecting to wireless networks thanks to QR code technology. Simply point the camera at a special barcode, and the device automatically connects to the internet without manually entering characters. However, the opposite situation often arises: the phone is already connected to the network, but password forgotten, but you urgently need to share access with guests or connect a new gadget.

Fortunately, Android and iOS operating systems store data about saved networks, and in many cases this data can be visualized as a QR code. By scanning a custom-generated code or using special viewing methods, the user can restore access to forgotten networks. credentialsThis process does not require superuser (Root) rights on most modern devices, provided the OS version is recent enough.

In this article, we'll detail the steps for various smartphone models. You'll learn how to extract information using the system's built-in tools or third-party software. security your network. We'll look at the nuances of how interfaces work in MIUI, One UI And iOS, and we will also discuss the technical features of data encryption at the access point.

How QR codes work for Wi-Fi networks

Quick Response (QR) technology has become the de facto standard for transmitting network settings. When you generate a code for a guest, the system encodes a string in a specific format that is read by a scanner. This string contains not only the SSID (network name), but also the encryption type, as well as the network itself. access keyThe standard string format looks like a sequence of parameters separated by special characters.

For most devices, the following data structure is relevant and must be followed when manually creating or analyzing code:

WIFI:T:WPA;S:MyNetwork;P:MyPassword123;;

Here T indicates the security type (WPA, WEP or nopass), S — the network name, and P — the password being sought. Understanding this structure is critical if you decide to use third-party generators or packet analyzers.

However, simply generating the code is not enough; it is important that the receiving device can read it correctly. Modern smartphone cameras have built-in decoders that automatically recognize the prefix. WIFI: and prompt the user to connect. If you want to see If you want to find a password hidden behind a graphic image, you will need decoding tools or standard network properties viewing functions.

View your Android password through network settings

Android smartphone owners, starting with version 10 of the operating system, have gained native Wi-Fi sharing. This feature essentially generates a QR code that can be scanned by another phone. But most importantly, beneath this code, a clear text version of the password is often (though not always) displayed.

The algorithm of actions for most devices (Samsung, Pixel, Motorola) looks like this:

• 📱 Open Settings and go to the section Wi-Fi or Connections.
• 🔗 Click the gear icon next to the active network name or the network itself in the list of saved ones.
• 📲 Select an option QR code or Share.
• 👁️ Complete biometric authorization (Face ID or fingerprint) to confirm your identity.

After completing these steps, an image will appear on the screen. In some shells, such as stock Android or older versions One UIThe password may be written directly below the code. If there is no text, the system requires scanning with another device. In this case, you can take a screenshot and analyze it using another method described below.

⚠️ Attention: On devices with heavily modified shells (some versions MIUI (or custom firmware) the function of text display of the password may be hidden by developers for security reasons.

Xiaomi, Redmi, and Poco (MIUI/HyperOS) Specifics

Users of devices from Xiaomi Often encounter the problem that the standard interface does not display the password in text under the QR code. However, in shells MIUI and new HyperOS There's a hidden feature or the ability to view it through the "Share" menu. Unlike stock Android, this process may require additional steps.

If there is no password under the code, try the following method, which works on most current firmware versions:

• 🔘 In the Wi-Fi menu, click on the arrow or icon next to the active network.
• 📤 Click the button Share (Share).
• 📸 Take a screenshot of the QR code that appears.
• 🔍 Open the app Google Lens (Google Lens) or any QR scanner, select an image from the gallery.

The result of scanning your own screenshot is often a data string where after the symbol P: The required access code will be indicated. This works because the graphic image contains all the information, and the decoder simply extracts it in text form.

What should I do if Google Lens can't see my password?

Sometimes the scanner only shows a link or network name. In this case, try using specialized QR code analysis apps from the Play Market, which display raw data without attempting to automatically connect.

It is worth noting that in the latest security updates HyperOS Access to this data can be additionally protected. Make sure the lock screen is enabled on your device, as the system will not allow you to view the QR code without unlocking it.

How to find the password on an iPhone (iOS 16 and later)

Long time users iPhone were unable to view saved Wi-Fi passwords without jailbreaking. With the release iOS 16 Apple has implemented a full-featured password manager for Wi-Fi networks, accessible directly from Settings. This makes the process as simple and secure as possible.

Instructions for current versions of iOS:

• 🍏 Go to Settings → Wi-Fi.
• ℹ️ Click on the blue information icon (i) next to the desired network.
• 🔑 Tap the hidden field Password (dots).
• 🆔 Verify with Face ID, Touch ID, or enter your device passcode.

Once authenticated, the dots will turn into readable text. A button will appear. Copy, which allows you to instantly paste your password into any other app or send a message. This is the most secure and native method for the Apple ecosystem.

If you have an older version of iOS (15 and below), you can't view your password using the built-in tools. The only option is to use sync with macOS via iCloud Keychain if you have a Mac, or update your phone's software.

Using third-party applications and scanners

When standard methods don't display the password in text (meaning you only see a QR code), third-party tools come to the rescue. The main task of these apps is to scan the graphical code and display the data as text. This is a universal method that works on any smartphone with a camera.

The table below provides a comparison of popular methods and applications for solving this problem:

*Note: Apps that require root access to connect without a password often contain vulnerabilities or adware. Be careful when installing them.

To use the scanner, take a screenshot of the QR code from your phone's Wi-Fi settings. Then, open the scanner app and select an image from your gallery. In the scan results, look for a string beginning with WIFI:S:Everything that comes after P: and until the next symbol ; (or the end of the line), and that is your password.

⚠️ Attention: Install QR code scanners only from trusted developers with extensive reviews. Attackers can inject malicious code into simple utilities, disguising them as useful ones.

Technical limitations and security issues

Despite its convenience, the QR code method has its limitations. The main one concerns Android versions below 10 and iOS versions below 16. On these systems, the operating system does not provide apps with direct access to the registry of saved passwords in clear text for security reasons. Therefore, it is not possible to see the password "blatantly" through the settings.

There are also limitations associated with corporate networks. If your organization uses complex security certificates (EAP-TLS, PEAP), a simple QR code may only contain part of the data required for connection. In such cases, connecting a new device often requires installing a special configuration profile rather than simply entering a password.

It is important to understand the difference between encryption And codingA QR code doesn't encrypt your password in the cryptographic sense; it simply converts it into a graphical format. Anyone who scans this code will gain full access to your network. Therefore, never post screenshots of such codes to public sources or social media.

Mobile operating system interfaces are constantly being updated. Menu locations, item names (Settings, System, Connections) may vary depending on the firmware version and regional settings of the device. If you can't find the item you need, search your phone's settings by entering "Wi-Fi" or "QR code."

Frequently Asked Questions (FAQ)

Is it possible to find out someone else's Wi-Fi password by scanning their QR code?

Technically, if you have physical access to the network's QR code (for example, printed on the router or posted on the wall in a cafe), you can scan it and connect. However, if you're not connected to the network and don't have router administrator rights, it's impossible to find the password over the air or over the internet. This violates computer security laws.

What should I do if the QR code is not read by the camera?

Try improving the lighting, cleaning the camera lens, or moving your phone closer/further away. If the code is damaged or handwritten, the camera may not recognize it. In this case, you can use scanner apps with a "manual entry" feature or try taking a photo of the code and increasing the brightness/contrast in a photo editor.

Is it safe to save screenshots with QR codes to the gallery?

This isn't secure. The screenshot contains your password in plaintext (albeit a graphical one). If an attacker gains access to your gallery or cloud storage, they can easily read the code, connect to your network, and intercept your traffic. It's best to delete such screenshots immediately after use.

Does this method work on tablets?

Yes, the operating principle is identical to smartphones. Android and iPadOS tablets use the same system mechanisms to manage Wi-Fi connections. The only difference may be in the layout of the settings menu due to the different screen sizes.