Modern Xiaomi smartphones, which run on the shells of MIUI or the new HyperOS, are complex computing centers where communication modules play a critical role. Periodically, users are faced with a situation where the device ceases to see available networks, does not connect to the home router or loses the signal of the cellular operator for no apparent reason.
Network reset is an effective diagnostic tool that returns communication modules to the default state, eliminating program conflicts and erroneous connection registry entries.This procedure is safe for your personal data, such as photos or contacts, but it requires re-entering passwords from Wi-Fi and reconfiguring some applications. Understanding how to perform this operation correctly will save you time and nerves if you experience connection problems.
In this article, we will analyze the algorithms of actions for different versions of the operating system, consider the hidden menu of the engineer and answer frequent questions that arise from owners of brand devices. It is important to approach the process consciously, understanding what components will be affected by cleaning to avoid surprises in the work of messengers or navigation services.
Why is it necessary to reset network parameters?
Software bugs are a natural process for any operating system, and Android is no exception. Over time, system logs and network module caches accumulate data about previously connected access points, Bluetooth devices, and mobile carrier APN settings, which can conflict with each other, especially if you often move between different cities or use many different Wi-Fi networks.
Failed firmware updates, which may contain software bugs that affect communication drivers, are a common cause of failures. IP-addresses or incorrect settings DNS They can also completely paralyze the Internet connection, creating the illusion of a malfunction of the hardware part of the smartphone.
⚠️ Before you start any manipulations, make sure you remember passwords from important Wi-Fi networks, as they will be permanently deleted from the device’s memory.
Another factor is the impact of third-party applications that can intercept the management of network interfaces or set their own traffic filtering rules, VPN-Clients and parental control programs often make changes to routing tables that remain active even after the application itself is removed.
Preparation of the device before the procedure
While the process of restoring the factory network parameters is considered safe, neglecting the preparatory stage can lead to temporary discomfort.The first thing to do is to make sure that the battery is charged at least 30-40% so that the device does not turn off at a critical time of rebooting the communication modules.
It is recommended to record or photograph the current settings of the access point in advance (APN) This is especially true for corporate tariffs or specific Internet settings that require manual settings. VPN-connect and remove the memory card if it is used to store system logs.
- 📱 Check for important Wi-Fi passwords in your Google cloud account or notebook.
- 🔋 Make sure the battery level is sufficient for the procedure and the subsequent reboot.
- 📡 Disable all active Bluetooth connections and break pairs with wearable electronics if you plan to reset completely.
- 📝 Save screenshots of settings APN, If you use a manual operator configuration.
Owners of devices with two SIM-maps should be determined in advance which of them is the main for data transfer, in order to quickly restore priorities after resetting. The logic of the system is that after cleaning it can arbitrarily choose one of the SIM cards to access the Internet, which can lead to unexpected traffic costs if the rates for them differ.
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Take a screenshot of the APN settings before resetting – this will save time to restore mobile Internet if the automatic settings do not apply.
Standard Reset Method through the Settings Menu
The most secure and recommended way for manufacturers to return network modules to working condition is to use the standard operating system interface, which is guaranteed to clean only the necessary sections of the registry without affecting the user's personal files or installed applications. The algorithm of actions may vary slightly depending on the version of the MIUI shell or HyperOS, but the overall logic remains the same.
To start, you need to go to the main menu of smartphone settings. In new versions of the interface, the path can look like Settings → Connection and Sharing → Reset Wi-Fi, mobile networks and Bluetooth. In older versions of MIUI, this item is often hidden in the section Additional or Advanced Settings. It is important not to confuse this item with a complete reset of the phone, which deletes all data.
☑️ Checklist before reset
After logging into the corresponding menu, the system will request proof of identity. PIN-A screen unlock code, pattern lock or fingerprint is a security measure that prevents an accidental or unauthorized reset by attackers who gain access to an unlocked device.
The list that opens will offer you reset options. The options that are usually available are Reset Wi-Fi, Reset Mobile Networks, and Reset Bluetooth settings. You can choose the specific module that causes the problems, or you can reset all network settings at once. Once confirmed, the smartphone will automatically restart network services, which will take a few seconds.
| Parameter | What's being dropped | It's still there. |
|---|---|---|
| Wi-Fi | Saved networks, passwords, static IP | Photos, contacts, annexes |
| Mobile network | APN settings, preferred network type | Call history, SMS. |
| Bluetooth | List of associated devices | Media files, documents |
| Personal data | Nothing. | All user information |
Using the Engineering Menu for Diagnostics
For more advanced users who have not been helped by standard methods, there is access to a hidden engineering menu, which provides access to deep radio settings and allows testing and resetting at a lower level, logging into the menu through a special code in the Phone application, but its functionality may be limited depending on the regional version of the firmware.
To get into the menu, open the dialer and dial the combination ##4636##. If the code works, the Testing menu will open where you select "Phone information." Here you can find the "Run Ping Test" button to check the connection or a switch to change the network type, for example, force LTE Only.
⚠️ Warning: Changing unknown parameters in the engineering menu can lead to complete signal loss or unstable phone operation.
In some cases, especially on global firmware versions, the code may not work, so you can try an alternative way through the Service & feedback app if it's pre-installed, and often hide diagnostic tools that allow you to restart network services without logging into the developer's hidden menus.
The use of an engineering menu is justified when the problem is specific, for example, the phone “sees” the network, but does not register in it, or constantly switches between 3G and 4G. Standard resetting in such cases may not be enough, since it does not affect the network.
Low-level status flags of the radio module.
What if the code doesn't work?
Resetting APN settings for mobile internet
Special attention should be paid to the situation when Wi-Fi and Bluetooth work properly, but the mobile Internet refuses to function (APN), which may have been lost after the update or change SIM-Unlike a complete network reset, you can point-to-point restore the operator's Internet access.
To do this, go to the Settings. → SIM-maps and mobile networks → Choose yours. SIM-map → Access points (APN). In the list that opens, you'll see the current configuration. At the bottom of the screen, there's usually a Reset button or a three-point menu where you select Reset to defaults.
Once reset, you need to make sure that the correct access point is selected (the marker next to the name). If the list of access points is empty or the Internet is not working, you can enter the parameters manually by taking them from your operator's official website. Usually, you just need to enter the name (Name) and the access point (APN), the remaining fields are filled in automatically or do not require intervention.
- 📶 Make sure the Mobile Data switch is activated after resetting APN.
- 🔄 Restart the device after changing the access point settings to apply the changes.
- 🌐 Check if there is a traffic limit that could block the connection.
It is important to understand that resetting APN does not delete stored Wi-Fi passwords or Bluetooth pairs, it affects only the data channel through the SIM card, which makes this method an ideal first step in diagnosing problems with mobile Internet, without affecting other usability of the smartphone.
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APN spot reset often solves mobile internet problems faster and safer than a complete reset of all network settings of a device.
Possible problems after discharge and their solution
After the reset procedure, the user may experience a number of expected but sometimes frightening changes in the behavior of the device. The phone may start to connect more slowly to known Wi-Fi networks, as it needs to re-shake hands and log in, a normal behavior that will pass after successfully connecting to the main access points.
One of the common problems is the disappearance of the 4G or 5G icon and the return of kEDGE or 3G. This indicates that the settings of the preferred network type have been lost, in which case you need to re-enter the mobile network settings and select the mode “Preferred to 4G/LTE” or “5G/4G/3G/2G (auto)”. Sometimes you need to re-register on the operator’s network, which takes a few minutes.
If your smartwatch or headphones stop working after the reset, don't panic. The Bluetooth stack reset has removed the pairing keys, and the devices won't "recognize" each other anymore. You'll need to redo the pairing procedure: turn on the device search on your phone and activate the pairing mode on your gadget. In rare cases, you may need to remove the old device profile from the Bluetooth list before you reconnect.
⚠️ Note: If you have disappeared after the discharge IMEI or the phone says, "Invalid." SIM», The problem may be hardware or partition damage EFS, What requires contacting the service center.
Also worth mentioning is the possible reset of DNS settings. Some users prescribe static DNSs (like Google DNS or Cloudflare) to speed up the Internet or bypass blockings. Once network settings are reset, these settings will return to automatic settings received from the router or operator. If you need a specific DNS, you will have to re-register it in Wi-Fi settings or through the Private DNS application.