How to reset mobile Internet settings on Xiaomi

Modern Xiaomi, Redmi and POCO smartphones have powerful modems and support a wide range of frequencies, but even in such devices, software failures sometimes occur. Users often face a situation where the 4G or LTE icon is displayed, but the pages in the browser do not load, and applications can not send data. In such cases, the standard on and off of air mode may not help, and the only right solution is a complete reset of data transmission parameters.

Resetting mobile Internet settings does not affect your personal files, contacts or installed applications, but returns the APN configuration to factory values. This action is especially important after updating the MIUI or HyperOS firmware, when old carrier profiles can conflict with new system protocols. Restoring correct parameters often solves the problem of the “dead” Internet without the need to flash the device.

In this article, we will take a look at all the available network reset methods, from simple reboot of the communication module to deep reset via the engineering menu. You will learn how to properly remove conflicting APN profiles and where to find hidden speed optimizations for your region. Understanding these processes will allow you to independently resolve most network problems in minutes.

Diagnostics of mobile Internet problems on Xiaomi

Before you start taking drastic measures, you need to make sure that the problem lies in the software settings, and not in the physical damage of the antenna or lack of coverage at the operator. Often the cause of instability is an incorrectly exposed network type or a failure in the registration of a SIM card on the network. If your Xiaomi phone stopped “catch” 4G or constantly switches to EDGE, it is worthwhile to conduct an initial diagnosis.

Pay attention to the indicators in the status bar: if the network icon is lit in gray or a cross next to the SIM card is displayed, this may indicate a lock. SIM-However, if there is a signal but there is no data transmission, the access point parameters are likely to have been misplaced. APN. Operators periodically change gateways and ports, and old entries in the phone cease to be relevant.

⚠️ Note: Before resetting, make sure that the mobile operator has funds and the traffic limit is not exhausted. Also check if the data service is activated in the operator’s personal account.

To quickly check the status of the connection, you can use built-in diagnostics. Go to Settings → About Phone → All settings and click on the Kernel Version several times or use the engineering menu codes, if available for your model, to determine whether the modem sees the SIM card and whether it is registered in the network of base stations.

Resetting the settings of the APN access point

The most effective and safe way to restore the Internet is to reset the profiles of access points, which is where the gateway addresses that your Redmi or Xiaomi smartphone connects to the global network are written, and errors in these records are the most common cause of mobile traffic that is broken after a change of region or operator.

To do this, open the settings menu and go to the SIM card and mobile networking section. You need to find an active SIM card and select Access Points (APN). In the list that opens, you will see all saved profiles, including those that were added automatically or manually before. Excess or corrupted entries can interfere with correct operation.

At the bottom of the screen, or in the menu called at three points in the corner, there is a reset button. By clicking on Reset or Restore by default, you will delete all user changes and return the standard settings prescribed in the firmware for your region, after which the system will automatically select the correct profile for your operator.

It is important to note that after a reset, the phone may need to reboot to apply the changes. Don't ignore this requirement, as the communication module must re-initiate the connection using updated parameters. If the Internet is up but the speed remains low, it may be worth manually checking the type of APN protocol.

Complete reset of network settings

If the manipulation of access points has not worked, a deeper approach is needed: resetting all network settings, a feature in the MIUI and HyperOS shell that brings not only mobile Internet, but also Wi-Fi, Bluetooth and VPN parameters back to factory values, eliminating any software conflicts in the device's network stack.

To start the process, go to Settings → Connection and Sharing. At the bottom of the list, find Reset Wi-Fi, mobile networks and Bluetooth. The system will warn you that all stored Wi-Fi passwords and associated Bluetooth devices will be removed. This is a necessary measure to completely clean the cache of network modules.

Once confirmed, the phone can restart, and when you get back on the system, you'll need to re-enter your home Wi-Fi passwords and re-save your watch or headphones, but mobile Internet should be up and running at the highest possible speed, as all hidden constraints and configuration errors will be eliminated.

⚠️ Warning: After resetting your network settings, all saved Wi-Fi passwords will be deleted without recovery. Write down passwords from important networks in advance or make sure you remember them.

This method is especially useful if you recently upgraded from Android 13 to Android 14, or if the phone has been in repair where system files could have been changed.A clean start for network modules often works wonders by fixing "floating" connectivity issues.

Working with two SIM-maps and modem selection

Owners of two-symbol Xiaomi smartphones often face confusion in settings when the Internet tries to work through a SIM card that does not pay for traffic or poor coverage, in such cases, even a proper reset of APN will not help if the system selected the wrong source of data.

Priority management is carried out in the Settings section → SIM-This is the Internet or Mobile Data, where you want to explicitly specify the SIM card that traffic is going through, and make sure that the switch is on the right operator, not on "Not installed" or the second SIM card.

In addition, modern firmware versions offer the option of “Use mobile Internet with weak Wi-Fi.” If this option is enabled, the phone may behave incorrectly, trying to balance between sources. For diagnostics, try temporarily turning off Wi-Fi and check the mobile network in isolation.

• 📶 Check which SIM card is assigned to transfer data at the moment.
• 🔄 Try temporarily disabling the second SIM card in the settings to eliminate registration conflicts on the network.
• 🌐 Make sure that data roaming is enabled for the selected SIM card if you are abroad or in the coverage area of another operator.

Sometimes it helps to simply change the SIM card slots. In some Redmi models, the first slot has priority or better support for 4G frequencies. By moving the SIM cards in places and resetting the APN settings, you can achieve a more stable connection.

💡

If you travel frequently, create a separate APN profile called Travel and copy the local operator’s settings to it, allowing you to quickly switch between profiles without completely resetting.

Engineering menu and hidden modem settings

For advanced users who have not been helped by standard methods, there are hidden settings in the engineering menu, through which you can force the radio module to change the mode of operation, reset the connection statistics and choose the preferred network type at a deeper level than the standard menu allows.

To get into the engineering menu, open the Phone app and dial ##4636##. If the code works, the Check menu will open where you select Phone Information, and you will see detailed statistics and control options for the radio module.

In the section Set the preferred type of network, you can try to change the value, for example, to LTE Only. 4G) To check for stability and then return it back. LTE/TD-SCDMA/WCDMA/GSM. Also available here is the Ping Test button, which allows you to check the real connection to the server, bypassing the browser.

Available commands for resetting (entering in the call):
#4636## - Testing menu
#7262626### - GSM test (not on all models)
#3646633## - MediaTek Engineering Menu (older models)

⚠️ Warning: Be extremely careful in the engineering menu. Changing radio frequency settings or disabling certain bands (Bands) can lead to the complete disappearance of the network.

Frequently Asked Questions (FAQ)

💡

In 90% of cases, the problem with mobile Internet on Xiaomi is solved by simply resetting the APN access point to factory settings.