Modern smartphones, including popular Xiaomi and Redmi models, allow you to save passwords from Wi-Fi networks for automatic connection in the future. However, when you visit friends or need to connect a new gadget, it often becomes necessary to find out this forgotten code. Owners of the Redmi Note 9 can find it difficult to find the desired section in the menu, since the MIUI shell has its own navigation features.
Fortunately, in the current versions of the firmware MIUI 12 and MIUI 13, which are available for this model, has a built-in security key viewing function. You don't have to install third-party applications or get superuser rights. QR-The code that you can decrypt is the text version of the password, and it makes life easier for users, saving time on finding a router or communicating with the provider.
In this article, we will discuss in detail the algorithm of actions that will help you quickly retrieve the necessary information from the memory of the device. We will discuss the standard methods, as well as the technical details of the operation of wireless modules in Xiaomi smartphones.
Built-in function QR-code-in MIUI
The easiest and most reliable way to find out a password is to use native Android functionality, which was significantly improved by Xiaomi engineers. In older versions of the interface, this option may have been hidden, but now it is available directly from the wireless network management menu. First, you need to make sure that your smartphone is connected to the very network from which you want to know the key.
Go to your device's Settings and select the Wi-Fi section, which will show you the list of available networks, and on top will be an active connection that says "Connected." Click on the arrow to the right of your network name or the signal icon itself to open the detailed menu. This is where the desired “share” button or icon is hidden. QR-code.
Once you click on the Share button, the system will ask you to verify your identity, depending on the Redmi Note 9's security settings, it can be a pattern lock, a fingerprint, or a face scan, an important security feature that prevents unauthorized users from stealing data if they have the phone in their hands.
There will be a unique screen. QR-It's often, but not always, a text password underneath, and if it's star-studded or missing, don't worry. Take a screenshot or just use a second phone with a camera and scanning. QR-codes (for example, through Google Lens or built-in scanner) MIUI).
⚠️ Warning: Never show this one. QR-Any person who scans it will instantly access your home network without having to enter a password manually.
Technical details of code generation
Once the second device scans the code, it will display a text string with a login and password, copy it or remember it, and it works consistently on all global and Chinese firmware versions released after 2020.
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Staffed QR-code MIUI — The safest way, since it does not require the installation of third-party software and works at the level of system security protocols.
Search for password through router settings
If for some reason the function QR-If you have a code on your Redmi Note 9 that doesn't work or the interface looks different, you can try accessing the settings of the router itself. This method requires that your phone be connected to the Wi-Fi network you want to know the password from. MI Browser.
Open the browser and enter in the address bar IP-The router's address. 192.168.0.1 or 192.168.1.1. The exact address is often written on a sticker on the bottom of the device or in documentation. Once the address is entered, the system will request a login and password to log into the admin panel. admin/admin, If you have changed them before, use your data.
Once you're in the router management menu, you'll find the wireless-related section, which can be called Wireless, Wi-Fi Settings, or Wireless Mode, and the security section will have the Wireless Password or PSK Password field, and you'll see the current key, either in the open or asterisks, that you can hide/show.
☑️ Checking access to the router
The table below provides standard addresses and login details for popular router manufacturers, which are often paired with Xiaomi smartphones:
| Manufacturer | IP-address | Login by default | Password default |
|---|---|---|---|
| TP-Link | 192.168.0.1 | admin | admin |
| ASUS | 192.168.1.1 | admin | admin |
| D-Link | 192.168.0.1 | admin | (empty) |
| Xiaomi Router | 192.168.31.1 | admin | indicated when setting up |
| ZTE | 192.168.1.1 | admin | admin |
Changing the settings here allows you not only to look at it, but also to change the password to a more complex one. After you make changes to the WPA Pre-Shared Key field, remember to click the "Save" or "Apply" button to make the new settings effective. All connected devices will be disabled and require re-authorization.
Use of Google Password Manager
Google’s ecosystem offers another convenient way to store and view passwords that syncs between Android devices. If your Redmi Note 9 is synced to a Google account, then the Wi-Fi keys can be stored in a cloud-based password store, especially if you’ve previously connected to that network on another device with the same account.
To check for saved data, go to Settings on your phone, scroll down to the Google section and select Autocomplete. Next, click on Autocomplete from Google and select Google Passwords or Password Manager. In the list that opens, find the name of your Wi-Fi network.
Clicking on the network name, the system will again request proof of identity (print, face or pin). Once you have successfully logged in, you will see the login and password field. Next to the password field is usually an eye icon. Click on it so that hidden characters are replaced with readable text.
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If you have changed your phone, simply log in to your Google account on the new device and all saved Wi-Fi passwords will be pulled up automatically after sync is enabled.
The good thing about this method is that it's independent of the MIUI version and works even if you reset the network settings on the phone itself, but you haven't deleted data from the Google cloud. However, it's worth remembering that locally on the device, the password may not be visible if the sync was disabled at the time of connection.
Viewing through ADB and computer
For advanced users who are not afraid to work with the command line, there is a method of obtaining a password through USB debugging (ADB). This method requires connecting the Redmi Note 9 to a computer and having an installed driver and Android SDK Platform-Tools. The method works without root rights on some versions of Android, but more often requires root access to read system configuration files.
First, activate the developer mode. To do this, seven times click on the build number in the About Phone section. Then, in the Advanced Settings menu, turn on USB Debugging. Connect the phone to the PC with a cable and enter a command in the command line to check the connection:
adb devicesIf the device is determined, you can try to pull the Wi-Fi configuration file. /data/misc/wifi/WifiConfigStore.xml or /data/misc/wifi/wpa_supplicant.conf. To copy the file to the computer, use the command:
adb pull /data/misc/wifi/WifiConfigStore.xml C:/wifi_config.xmlOpening up. XML-If you have a file in any text editor, you can find the PreSharedKey tag, which will store the desired password in plain form. Please note that on modern versions of Android, access to this file without root rights can be blocked by the security system.
⚠️ Attention: Working with ADB Care must be taken with the system files, and improper actions can lead to unstable operation of the Wi-Fi module or disruption of network services. MIUI.
This method is considered expert and used when standard methods are not available, it demonstrates how deep the connection data is stored in Xiaomi’s system, and confirms the importance of physical protection of the device.
Third-party applications and their limitations
There are hundreds of apps on the Google Play store that promise to show saved passwords, popular names include WiFi Password Viewer, WiFi Key Recovery, and others, but Redmi Note 9 owners should be extremely careful about using them, and the way they work is often based on trying to gain root rights or exploit system vulnerabilities.
Most modern applications without superuser rights can only show the QR-code (using the same system code) API, as-staff MIUI) Or you can guess the password from the database of known combinations (wpa_supplicant.conf) Android 10 above strictly limited.
Installing unverified applications carries risks:
- 📉 Advertising and intrusive notifications can slow down the smartphone.
- 🔒 Collection of personal data, including visit history and other passwords.
- 🦠 Possibility of infecting the device with malware (miners, Trojans).
If you do decide to use such software, choose applications with high ratings and a lot of reviews from well-known developers, but remember: the regular MIUI funds in conjunction with a Google account fully cover the needs of the average user, making third-party software redundant.
What to do if the password is not displayed
Sometimes users are faced with a situation where none of the methods is working: there is no share button in the Wi-Fi settings, Google Password Manager is empty, and you can not log in to the router. This may be due to the security policy of the carrier (if used). SIM-limited access card or specific firmware version.
In such cases, the router is physically reset, and the router has a Reset button on the body (often recessed into the case) and clicks on it with a paper clip on the back of the router. 10-15 In a second, you return the device to factory settings. The Wi-Fi password becomes the same as the sticker on the bottom of the router (or disappears if the network was opened by default).
After the reset, you will have to reconfigure the Internet, which may require a call to the provider to get the PPPoE or L2TP settings. Therefore, this method should only be used as a last resort when other options are exhausted and access to the network is vital.