How to set up mobile Internet on Xiaomi Mi 9: the complete guide

The modern flagship Xiaomi Mi 9 is a powerful multimedia device that simply cannot function fully without stable access to the global network. AMOLED And the processor requires a constant flow of data to update widgets, sync cloud services and stream content. SIM-cards, users often face a situation where the automatic configuration does not occur, and the icon 4G or+ does not appear in the state string.

The lack of internet can be caused by a variety of factors, from a banal lack of balance to complex conflicts of network profiles in the shell of MIUI. Device owners need to clearly understand the difference between a physical SIM card connection and software setting of access points. In this article, we will discuss in detail an algorithm of actions that will help activate data transmission even in the most difficult cases when standard methods do not work.

It is worth noting that Xiaomi Mi 9 Supports modern communication standards, including frequency aggregation, which ensures high download speeds. Incorrect settings can limit your smartphone’s potential, making it work in mode 2G/EDGE, And if you have a good configuration, you can unlock the full speed potential of the device in the fourth generation of networks.

Primary inspection SIM-maps and physical connections

Before you delve into the complex menu settings, you need to rule out basic physical problems. SIM-The cards in Xiaomi Mi 9 are combined, which requires careful installation. Make sure the card is mounted on the correct side and fits tightly to the contacts. Even a microscopic gap can lead to periodic connection breaks or a complete lack of network signal.

After you physically install the card, you should check its status in the system. SIM-The card is active and not blocked PIN-code, if you didn't type it when you booted it. MIUI It allows you to flexibly manage two SIM cards, assigning priorities for calls and the Internet separately.

⚠️ Attention: If you are using SIM-A hand-cut card with scissors increases the risk of damage to the contacts of the tray or the card itself, often only by replacing the card with a new one from the operator.

For proper operation in networks 4G yours SIM-If the card is many years old, it can only be calculated on the basis of 2G/3G. In this case, no settings of the smartphone will not help to get high speed. USIM supportive 4G/LTE.

Basic activation of data transfer in MIUI

The MIUI shell interface has its own features that can confuse newcomers. Often users forget to simply turn on the mobile data slider, relying only on Wi-Fi. For quick activation, lower the notification curtain from top to bottom and find the Mobile Data icon, which should be blue or green, which signals an active connection.

A deeper setup is done through the main menu. → SIM-This is where you get access to advanced connection management, and this is where you select the SIM card that you'll be able to access the Internet if you have two.

• 📱 Choose the right one. SIM-map.
• 📶 Make sure the “Use Mobile Data” switch is activated.
• 🌐 Check if the checkmark is on the item «4G» or "Preferred type of network».

It is important to set up your preferred network type correctly. If you choose only 3G or 2G, the phone will not try to find fourth-generation towers, even if they are nearby.The optimal choice is the "Preferred LTE" mode or similar, which allows the device to automatically switch between standards depending on the quality of the coverage, keeping maximum speed where possible.

Manually configuring APN access points

The most common reason for not having internet when you have a signal is that the APN (Access Point Name) is misconfigured, which is the gateway address through which your device connects to the operator's network, and usually the settings come automatically as SMS, but sometimes this mechanism fails, and you have to type in the settings manually.

To make changes, go to the Settings menu → SIM-maps and mobile networks → Choice SIM-map → Access points (APN). In the list that opens, you'll see your current profiles. To create a new one, click on the plus at the bottom of the screen or select "New Access Point." Here you'll need to enter data that can be found on your mobile operator's official website.

Pay special attention to the fields “Name” and “Access Point (APN)”. In the “Name” field, you can write anything for convenience, for example, “My Internet”, but in the “Access Point” field, you must spell out strictly defined letter codes for the operator. The remaining fields, such as username and password, are often empty unless the operator has indicated otherwise.

Below is a table with basic parameters for popular carriers, which are often used in conjunction with the Xiaomi Mi 9:

Once you have entered all the data, be sure to click the menu (three dots or the "More" button) and select "Save." Then activate the profile you created by putting a dot next to it. Without saving, the changes will not take effect, and the Internet will not appear.