How to make mobile Internet in Xiaomi: the complete guide

Lack of access to the world wide web on a modern smartphone turns the device into a useless piece of plastic. Owners of Xiaomi, Redmi and Poco devices often face the situation when, after replacement, they are not able to use the device. SIM-When you're carded or reset your device, it stops coming online, and it can be for all sorts of reasons, from a simple lack of funds in your account to complex software protocol conflicts.

In this article, we will take a closer look at how to make mobile Internet on Xiaomi so that you can use instant messengers, navigation and streaming services anywhere in the coverage, and we will not limit ourselves to simple tips like “on and off”, but rather look at deep configuration of APN protocols, work with engineering menus and specific problems of the MIUI or HyperOS shell.

Restoring the communication module requires attention to detail. Incorrectly entered parameter can cause the phone to see the network, but can not transmit data packets. Below are proven algorithms of actions that will help to fix the problem.

Basic diagnostics and verification of the SIM card

Before getting into the wilds of settings, you need to eliminate hardware problems and operator errors. Often users forget that to work 4G/LTE SIM card must meet certain standards. If you use an old chip that was released more than 7 years ago, it may not support high-speed data protocols, even if the tariff plan allows it.

First, check the physical condition of the contacts, remove the tray and make sure the golden contacts are in place. SIM-The cards are free of oxides, scratches or contamination. In Xiaomi devices, the tray can be combined with a memory card, and improper installation often leads to the phone not reading the chip at all.

• 📱 Make sure that SIM-The card is inserted into slot 1, as some Redmi models give data priority to the first slot by default.
• 💰 Check the account balance and the absence of blocking from the operator by calling from another number.
• 🔌 Try installing the SIM card in another smartphone to rule out damage to the chip itself.

If the physical part is fine, look at the network status at the top of the screen. If you see a 3G or E (EDGE) icon, it means the Internet is working, but at low speed. To fully use media, you need a 4G or LTE standard. In the phone settings, you can force this to change by choosing your preferred network type.

⚠️ Warning: If the phone says "No" SIM-cards" or "Valid SIM», programming APN The problem is that the module or the chip itself is physically malfunctioning.

Activation of data transmission and network selection

The most obvious, but often ignored, step is to turn on the data slider. MIUI Traffic management is implemented quite aggressively, and the system can block access to the network to save charge or due to traffic saving settings. → SIM-Maps and mobile networks and make sure the mobile Internet switch is active.

Network choice is an important parameter. Modern operators are gradually turning off old standards. 2G/3G, The enforcement of the “only” regime 4G» This may cause a complete loss of communication in areas of low reception. 4G/LTE. In this case, the phone will try to catch a fast signal, but in its absence will switch to the available signal. 3G.

Sometimes, a short-term flight mode switch is helpful, which force the radio module to reboot the smartphone, forcing it to re-register on the operator's network, and if the H+ or 4G icon does not appear after that, the problem goes deeper.

For advanced users, there's a hidden signal-checking feature available, and by dialer code ##4636##, you can go to the testing menu. Here, in the Phone Information section, you can see the real strength of the signal and force the network type to be set, but beware: the wrong changes here can temporarily put the radio module.

Manually configuring the APN access point

The most common reason why the Internet doesn't work on Xiaomi with a SIM card and money in the account is that the APN (Access Point Name) access point settings are not set correctly, which is the gateway through which your phone connects to the operator's Internet gateway, and often these settings come automatically in the form of SMS, but in case of a crash or when using corporate tariffs, they need to be entered manually.

To get into the settings menu, go down the Settings path. → SIM-maps and mobile networks → Choose yours. SIM-map → Access points (APN). Here you'll see a list of existing profiles. If the list is empty or the current profile is not working, you need to create a new one «+».

The window that opens must fill in the fields according to your operator's data. Usually, just enter the name and the access point itself. The remaining fields can be left empty or default if the operator has not provided specific instructions. After filling in, be sure to click More → Save and activate the new point by ticking next to it.

After saving the settings, it is recommended to restart the device. If the Internet does not appear, try in the "APN type" field to prescribe default,supl,dun. This is a universal string that often helps on Xiaomi smartphones to establish a stable connection when standard methods are powerless.

Resetting network settings and reflashing profiles

If manually configured failed, there may be software errors or profile conflicts in the system, and in such cases, a complete reset of network settings becomes an effective solution, which will not affect your personal files, photos or contacts, but will delete all stored Wi-Fi passwords, Bluetooth settings and mobile network settings.

You can reset via the Settings menu → Connection and Sharing → Reset Wi-Fi, mobile networks and Bluetooth. Once confirmed, the phone will reboot and you will have to re-enter Wi-Fi passwords, but the cellular settings will return to factory settings, which often solves the problem.