Accidental deletion of a WiFi profile on Xiaomi or Redmi smartphones is a common problem that can occur after a firmware update, reset settings, or simply by inattentively touching the screen. When a device forgets a familiar router, the user loses automatic connection, which is especially critical if the password from the network is complex or unknown. However, the architecture of the Android operating system with the MIUI shell provides several effective mechanisms to restore access without the need for complex hardware reprogramming.
Remote network recovery doesnโt always require a return to the factory settings of the entire phone. Most often, just perform a series of point actions in the wireless connection menu or use the functions of synchronizing your Mi Account account. Understanding how the system manages saved profiles will allow you to quickly return the Internet to the device and avoid unnecessary manipulation of the router.
In this article, we will discuss in detail the algorithms of actions for different versions. MIUI, So we're going to look at the hidden possibilities of the developer menu and explain why the network can disappear on its own. QR-Instant connection codes and what commands ADB It can help in difficult cases where standard methods do not work.
Why Xiaomi Phone Forgets WiFi Networks
Before embarking on active recovery actions, it is important to understand the nature of the problem. MIUI has aggressive energy saving algorithms that can force a connection to be broken or block reconnection to unstable access points, which is often perceived by the user as "removing" the network, when in fact the profile simply ceases to be active.
A common cause of loss of stored data is conflict. IP-addresses or errors in work DHCP-When a Xiaomi phone canโt get the correct address, it can label the network as โnot validโ and ignore it in the future. Itโs also worth considering that some Android security updates change encryption protocols, which makes old connection profiles incompatible and automatically deleted by the system.
Another factor is incognito mode or using guest profiles that don't store your connection history, and if you logged in in that mode, your password and configuration data will be lost permanently once you log out, requiring manual re-entry.
- ๐ถ Aggressive battery optimization in MIUI Disables the WiFi module when the screen is locked.
- ๐ Static and dynamic conflict IP-address.
- ๐ Change the security protocol on the router (for example, switching from the router to the router) WPA2 on WPA3).
- ๐ฑ Failure of the system application "Settings" after updating the firmware.
โ ๏ธ Note: If the network disappears only after the phone is restarted, the problem may lie not in the WiFi profile, but in the corruption of the system configuration file.
Basic methods of reconnecting to the network
The most obvious, but often ignored, way is to manually re-enter data, and when you remove the network from the saved list, the phone erases all association with the data. SSID (To restore access, you need to go to the Settings menu. โ WiFi, find the network in the list of available and click on it.
If the network is hidden or not displayed in the list, use the Add Network feature (often at the bottom of the list or in the More menu (SSID) And you can choose the type of security. WPA/WPA2-Personal.
It is important to follow the letter register when entering a password, as the system is sensitive to this setting. Once you enter the data, click "Connect." If the connection is successful, the phone will save a new profile, replacing the remote one.
โ๏ธ Checking before connection
In some cases, switching between WiFi modes helps. Go to advanced WiFi settings and try changing it. MAC-The device address is either random or default, which can bypass the router's lock if it remembers the old ID as being incorrect.
Use of the Mi Cloud Synchronization Function
Owners of Xiaomi devices have a unique advantage: the Mi Cloud ecosystem, where if your device has WiFi sync enabled, network profiles are saved in the cloud, which means that even after you delete the network from your phone, it can be restored from a backup.
To check for this, go to Settings โ Mi Account โ Mi Cloud. Make sure the WiFi switch is active. If the sync was enabled before the network was deleted, the system will automatically prompt you to restore data or do so in the background on the next successful connection to any available point.
This is especially useful if you don't remember the password from the network, and when you recover from the cloud, the phone will not only receive the network name, but also an encrypted access key, eliminating the need to remember complex character combinations.
| Parameter | Local storage | Synchronization of Mi Cloud | Manual input |
|---|---|---|---|
| Password retention | Yes (before deletion) | Yes (forever) | Knowledge is required. |
| Recovery | Impossible. | Automatic. | Handheld. |
| Internet dependency | No. | Yes. | No. |
| Security | Medium | Tall. | Depends on the user. |
How to check if the network is synchronized?
Resetting network settings as a radical solution
If simple methods have not helped and the network continues to behave incorrectly or does not want to recover, it is recommended to perform a network reset.This operation does not affect your personal files, photos or applications, but deletes all stored WiFi profiles, Bluetooth settings and mobile access points.
To perform the reset, go to Settings โ Connection & Sharing โ Reset WiFi, Mobile Networks and Bluetooth. Press Reset and confirm the action. Once rebooted, the phone will be clean in terms of network configurations.
This method is effective at accumulating system errors in network drivers, and it forcibly updates the configuration files of the communication module, eliminating conflicts that could prevent normal connection to a previously remote network.
- ๐๏ธ Remove all saved WiFi passwords.
- ๐ก Resets the settings. APN mobile operator.
- ๐ Untie all conjugated Bluetooth devices.
- โ Does not affect the personal data of the user.
Connection through QR-code from another device
Modern Xiaomi smartphones support the function of generation and reading QR-If you have another device (like a tablet or a friendโs phone) that is already connected to the right network, you can instantly restore access without entering a password.
On an active device, go to your WiFi settings, click on the network name or share button. QR-On your Xiaomi, open the standard Camera app or scanner in the WiFi menu and hover the lens over the code.
The system automatically recognizes the network settings and offers connectivity, which is not only fast, but also secure, because the password is not displayed on the screen and cannot be intercepted visually by unauthorized persons.
โ ๏ธ Attention: Scan function QR-The code may not work if the router is enabled with customer isolation or is using an Enterprise type of security (Enterprise) that requires certificates.
Advanced settings and working with ADB
For advanced users who have encountered MIUI software bugs, there is the ability to manage network profiles through the ADB debugging bridge. This method requires connecting the phone to the computer and having drivers installed.
With the command line, you can forcefully remove conflicting configurations or restart the network stack. For example, the command adb shell svc wifi disable and then adb shell svc wifi enable performs a โsoftโ reboot of the WiFi module, which often solves the problem of freezing the connection process.
adb shell dumpsys wifi | grep "mLastConnectFailureReason"This command will allow you to display the last reason for the failure to connect to the console, which will help diagnose the problem at a depth level, if the logs indicate โAuthentication Failureโ, then the problem is precisely the password or type of encryption, not the hardware.
๐ก
Use the command โping 8.8.8.8โ in the terminal immediately after you connect to check not only if you have a connection with the router, but also if you have access to the WAN.
Frequently Asked Questions (FAQ)
Can you restore a remote network without knowing your password?
Why does Xiaomi phone not see my WiFi network when others do?
Will resetting the network settings delete my photos and contacts?
How do I find out the password from the network to which the phone is connected, but which is removed from the list?
๐ก
Sync with Mi Cloud is the only reliable way to ensure that WiFi passwords are restored when data is lost on your device.