How to set up mobile Internet on Xiaomi phone

Modern smartphone is impossible to imagine without constant access to the global network, and owners of Xiaomi, Redmi or other devices. POCO They often have to manually configure the parameters, even though the system is not very efficient. MIUI HyperOS usually automatically picks up the operator’s settings when installed SIM-The card, sometimes there are failures that require user intervention, the lack of Internet can be due to errors in the access point. APN, deaktivation of the communication module or banal frequency incompatibility in roaming.

In this article, we will take a look at an algorithm that can help you get back to data in minutes. We will look not only at standard settings menus, but also at hidden engineering menus, as well as at system level diagnostics, and the right network settings are key to ensuring that messengers, navigation and streaming services work smoothly at any point in coverage.

Primary diagnosis and verification SIM-map

Before you delve into complex menus and change the settings of access points, you need to eliminate basic physical and logical errors. Often the problem lies not in the software of the phone, but in the contact of the SIM card with the device or the status of the tariff plan itself. Make sure that the account balance is positive and the data service is activated by the operator, because even with money in the account, mobile Internet can be blocked separately.

Owners of dual-SIM devices should pay attention to slot allocation. In some Xiaomi models, the first slot supports a wider range of frequencies. 4G/LTE, The second may be limited to the standard 3G If you're using two SIM cards, try moving the Internet card to the first slot and check the result.

It's also worth checking if the plastic card itself is damaged. Microcracks or contact oxidation can cause periodic breaks in the connection. SIM-map, wipe the contacts with a soft dry cloth and paste back until the characteristic click.

Basic configuration via MIUI and HyperOS menu

The standard way to activate mobile traffic in Xiaomi shells is as simple as possible for the user, but hidden settings may require manual switching. First, make sure that the Mobile Data slider is activated in the notification curtain or in the main settings. Sometimes the system suggests choosing a SIM card for the Internet by default, and if the wrong slot is selected, traffic will not be consumed.

For more fine-tuning, go to the Settings section. → SIM-Maps and mobile networks. Here you'll see a list of installed maps. Select the one you plan to access. In the menu that opens, it's important to check "Network type and preferences." It's recommended to choose mode Preferred LTE or 5G/LTE/3G/2G (car) so that the phone itself can search for the best connection available.

If automated search didn’t work, you can try resetting your network settings to factory settings.This action will remove stored Wi-Fi passwords and paired Bluetooth devices, but often solves problems with registering on the operator’s network.The path to the feature may vary depending on the OS version, but it’s usually found in the Advanced Settings menu → Reserve and Reset → Reset Wi-Fi, mobile networks and Bluetooth.

Manual configuration of the APN access point

The most common reason for not having internet on a network is an incorrect APN (Access Point Name) access point, which is used by carriers to route traffic, and if the phone has the wrong address, the connection to the outside world will not be established. Usually, the settings come automatically, but when you manually replace the SIM or flash it, you have to enter them manually.

To create or edit an access point, go to Settings path. → SIM-maps and mobile networks → (Choose. SIM) → Names of access points (APN). In the list that opens, click the New Access Point or Plus button, and you need to enter the data that your carrier provides (usually a name like "internet" and an address). APN, for example, "internet.mts.ru" or "wap.beeline.ru").

⚠️ Attention: When entering data APN Keep a register of letters and no spaces, and even one mistake in the address of the access point will cause the phone to show the network (E, 3G, 4G), But the pages in the browser will not load.

After filling in all the fields (the rest of the settings, APN type, usually do not need to change, they are the default "default,supl"), be sure to click the save menu (three dots in the corner or check box). Then go back to the list of access points and activate the created or edited record, putting a marker next to it. Without this step, the new settings will not apply.

Working with network modes and LTE preferences

In regions with unstable coverage or when the service areas of different towers are at the border, the phone can constantly switch between 3G and 4G, which causes connection breaks. In Xiaomi settings, you can lock in a preferred network type so that the device does not try to search for the “best” signal, but keeps a stable, albeit not maximum speed, this is especially true for older models or on the subway.

To change the network mode, use the standard menu Preferred network type. If the standard methods of switching fail (for example, the item is hidden or not working), you can use the engineering menu using the code # # #4636#. In the section "Phone Information", find the drop-down list "Install preferred network type".

You can choose between LTE Only (4G only) and WCDMA only (3G only) modes, and be careful that when you choose LTE Only, incoming and outgoing calls may stop working if your carrier does not support VoLTE technology or if you are out of 4G coverage.

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If you travel frequently, turn on the “Data Roaming” feature in your settings. SIM-In some regions (for example, Crimea, Kaliningrad, zones of "home roaming") without this flag, the Internet may not work, although voice communication will be available.

Solving data transfer problems in roaming

Using a smartphone abroad or in another region often requires additional settings, as automatic profiles may not apply. SIM-Without this permission, the phone will block any traffic to avoid unexpected expenses.

The second important aspect is manual operator selection. Automotive mode may try to plug into a weak signal or a partner of your operator with poor coverage. → SIM-maps and mobile networks → Telecom operators, turn off auto-selection and wait for the list of available networks. Choose the operator who best picks up the signal in the area.

Also check if traffic saving mode or Ultra-Savings is included in the battery settings. These features can block background data transfer for most applications, creating the illusion of a broken Internet. Add frequently used applications (maps, instant messengers) to exceptions or completely disable the battery saving for the duration of the trip.

⚠️ Warning: Before traveling abroad, be sure to check with your operator the conditions of roaming charging. In some cases, the Internet may work, but at very low speeds (2G EDGE), If you don't have a special package attached, you have to activate it. 4G in the phone settings without paid roaming can lead to a quick write-off or a complete blocking of data transmission by the operator.

Resetting network settings and extreme measures

If none of the above methods worked, and mobile Internet on Xiaomi never worked, it remains to perform a complete reset network settings, which will return all the connection parameters (Wi-Fi, Bluetooth, Mobile networks) to factory state, removing possible software conflicts or erroneous configurations accumulated during use.

Resets can be done via Settings → Connection and Sharing → Reset Wi-Fi, mobile networks and Bluetooth. Confirm and wait for the reboot of communication modules. After that, the phone will prompt you to re-enter passwords from Wi-Fi networks, but APN settings for mobile operators are often automatically reloaded.

In the most difficult cases, when the problem persists even after resetting and flashing, it can be a hardware malfunction of the antenna module or the modem itself. If the phone fell, fell into the water or just very old, you should contact the service center for diagnosis. Software methods can not fix the physical breakdown of the antenna.

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A complete reset of network settings solves 90% of software problems with the Internet, but requires re-authorization on all Wi-Fi networks and reconnecting Bluetooth devices.