How to turn on the Internet on Xiaomi 9: a complete guide to set up a network

The Xiaomi Mi 9, released in 2019, remains a popular device due to its flagship features, but owners often face difficulties in initial setup. After buying a new device or resetting to factory settings, the automatic configuration of the access point does not always occur correctly, especially if used in the same way. SIM-Virtual operator map or regional firmware. Users need to manually check the activation of data transmission, because without this step, applications will not be able to update, and navigators will not be able to build routes.

The process of connecting to a global network on the Android shell MIUI has its own features that differ from the stock interface. For owners of Xiaomi Mi 9, it is important to understand the difference between turning on mobile traffic and connecting to a wireless Wi-Fi network, since the algorithms of these modules differ. In this article, we will discuss in detail all the steps necessary for the stable operation of the Internet, including hidden settings that are often overlooked during the standard activation procedure.

If you just inserted SIM-map and see the network icon, but the pages in the browser do not load, the problem may lie in the absence of a profile APN Or blocking the background data transmission with a power saving system, and you don't have to panic and bring the device to the service center, because in 95% of cases, the problem is solved in a few minutes of competent software configuration. We will look at all possible scenarios, from simple switches in the notification curtain to manually entering operator parameters.

Basic activation of mobile traffic through curtain and settings

The fastest way to get the internet running on the Xiaomi Mi 9 is to use the Quick Action Panel, which is called by a top-down swipe, and at the top of the screen, the icons of the main communication modules are displayed, among which must be the icon “Mobile Internet” or “Data Transfer”. If it lights up in green or blue when pressed, but the Internet does not appear, you should check whether the correct one is chosen. SIM-card as the primary for data transmission, especially if the device has two operators.

The deeper setup is done through the main menu of the device. You need to go to the Settings section, then select the item. SIM-This is the key "Use the Mobile Network" switch that needs to be activated, and this is the setting that allows the Android operating system to initiate a connection to the gateways of the cellular operator.

Often users forget about the “Traffic Limit” feature, which can automatically turn off the Internet when you reach a set threshold. In the same menu, it is recommended to check the roaming settings if you are abroad, since without data roaming permission, the connection will not be established, even if voice communication is working properly. GPRS/EDGE/3G/4G linkage.

⚠️ Note: If you are roaming, enabling data transfers without a connected relevant tariff plan can result in significant financial costs.

After turning on all the switches, it is recommended to restart the device to apply the changes. Xiaomi Mi 9 is equipped with a powerful Qualcomm modem, which sometimes requires restarting the radio module to correctly register on the network after changing the configuration. If after rebooting the 4G or H+ icon appears but the pages do not load, go to the next section to check the access point.

Manually configuring the APN access point for operators

The most common reason for the lack of Internet in the presence of a signal is the incorrect setting of the access point. APN (Access Point Name: Operators use these parameters to route subscriber traffic, and if in the profile SIM-The cards are missing or contain errors, the connection to the outside world will not be established. On the Xiaomi Mi 9, these settings are on the way: → SIM-maps and mobile networks → Settings of access points (APN).

There may be multiple profiles in the list that opens, but only the one marked with a green dot is considered active. If the list is empty or no profile works, you need to create a new one «+» In the upper right corner, you'll need to enter data that you can find on your operator's official website or receive by sending. USSD-The key fields are "Name" and "Access Point (APN)».

For most Russian operators (MTS, Beeline, MegaFon, Tele2), it is enough to enter the operator's name in Latin in the APN field, and leave the remaining fields empty or by default. For example, for MTS, Internet.mts.ru is written in the APN field, and for Beeline - Internet.beeline.ru. After entering data, be sure to click the "More" button (three dots in the corner) and select "Save", otherwise the entered parameters will not be applied by the system.

• 📶 Name: An arbitrary name, such as "My Internet".
• 🌐 APN: technical name of the point (for example, Internet.mts.ru).
• 🔒 Type of authorization: usually PAP or CHAP (checks out the operator).
• 🔄 Type APN: default,supl (important for navigation).

After saving a new profile, remember to highlight it with a radio button to become active. Be sure to turn on and off the flight mode after changing the APN, so that the Xiaomi Mi 9 modem re-enter the network with new parameters. If the Internet has appeared but is unstable, try changing the APN protocol type to IPv4/IPv6 in the advanced access point settings.

Setup and Optimization of Wi-Fi Connection

Wireless Wi-Fi connection on Xiaomi Mi 9 is supported in two bands: 2.4 GHz and 5 GHz. To enable go to Settings → Wi-Fi and activate the slider. The smartphone will automatically start searching for available networks. When connecting to a secure network, you will need to enter a password. If the device does not see your network, make sure that the router broadcasts the SSID and does not hide its name.

Owners of Xiaomi Mi 9 may face a situation where the device connects to Wi-Fi, but the Internet is not available. IP-addresses or settings DNS. In the Wi-Fi menu, click the arrow next to your network name to open the advanced settings. Here you can statically set the arrow. IP-address DNS-servers to faster ones, such as Google (8.8.8.8) or Cloudflare (1.1.1.1).

The Wi-Fi Assistant feature in the MIUI shell can automatically switch a smartphone to mobile Internet if the Wi-Fi signal is weak. This is useful for stability, but can consume traffic. This option is located in the Wi-Fi menu, under the Wi-Fi Assistant. Also worth noting is the Game Acceleration feature, which prioritizes traffic for gaming applications by disabling the background download of updates.

For maximum speed, it is recommended to use the 5 GHz band if the router supports the 802.11ac standard. Xiaomi Mi 9 works perfectly with this standard, providing high data transfer speeds, however, the range of 5 GHz is less than that of 2.4 GHz. If you are far from the router, the smartphone can automatically switch to a slower, but long-range range.

Solving data transfer and network problems

If the Internet on Xiaomi Mi 9 does not work despite the correct settings, you need to conduct a diagnosis. The first step should always be to check the balance and status of the operator. Next, you should reset the network settings. This action will not delete your personal photos or contacts, but return all network parameters (Wi-Fi passwords, Bluetooth pairs, APN settings) to factory values.

To reset, go to Settings → Advanced Settings → Recover and Reset → Reset Wi-Fi, mobile networks and Bluetooth. Confirm action. Once rebooted, the phone will be “clean” in terms of network connections, which often resolves software conflicts that arose after the MIUI firmware update.

Another common problem is working in the “only” mode. 2G/3G». In the Preferred Network Type Menu, make sure the “Preferred” value is selected. LTE» or «5G/4G/3G/2G (v)” If “Only” is selected 2G», The modern Internet will not work. Also check if the mode "Saving traffic" in the settings is activated. SIM-cards that can block background activity of applications.

In some cases, the problem lies in mechanical damage. SIM-Take out the card, wipe the contacts with a soft cloth, and put them back in until you have the right click. SIM-The map in another phone to rule out its malfunction.The Xiaomi Mi 9 uses a combined tray, so it's important to correctly orient the map when installing.

Background activity restrictions and energy saving

MIUI is known for its aggressive energy-saving system, which can kill the processes responsible for maintaining a connection or synchronizing mail. If the Internet disappears when the screen is turned off, or messages come with a delay, you need to set up autostart and work in the background. Go to Settings → Apps → All applications.

Find a problem app (such as a messenger or navigator) and go to its settings. Select Battery and set No Limits mode. This will prevent the system from turning off the Internet for this application. Also, the AutoRun menu recommends that important services be allowed to work so that they can function immediately after the phone is turned on.

The “Accelerator” or “Memory Cleanup” feature built into the standard “Security” application can also interrupt network connections. In the accelerator settings, you can turn off automatic memory cleanup or add important applications to the white list. This is especially true for the Xiaomi Mi 9, where the Snapdragon 855 processor resource management is set to maximize performance in games, sometimes to the detriment of background tasks.

⚠️ Warning: Disabling background restrictions for a large number of applications can lead to faster battery discharge.

Also, check your Flight Mode settings on your schedule. You may have accidentally activated the automatic Flight Mode feature at night or at a certain time, which completely disables all communication modules. You can find this option in the Settings menu → Advanced Settings → Scheduled tasks.

Comparison of frequency and communication standards

Understanding which network your Xiaomi Mi 9 is running on helps diagnose speed issues.The device supports a wide range of frequencies, but the carrier coverage can be uneven. Below is a table describing the basic standards you can see in the status bar of a smartphone.

Xiaomi Mi 9 features a Snapdragon X50/X55 modem (depending on the regional version), which provides excellent frequency aggregation. However, if you are in a low-reception zone, the phone can often "jump" between 3G and 4G, causing connection breaks. In the settings, you can forcely choose "Only 4G" to avoid falling into 3G, but this can lead to a complete loss of communication if LTE coverage is missing.

To check the real speed, use applications like Speedtest or Fast.com. If the declared speed of the operator differs significantly from (measured), the problem may be overloading the base station or tariff plan restrictions (FUP), in which case rebooting the device to flight mode for 10 seconds helps to reconnect to a less busy tower.

FAQ: Frequently Asked Questions

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Proper APN setup and background activity resolution are two key factors for a stable internet experience on the Xiaomi Mi 9.