Modern Xiaomi smartphones are famous for their functionality, but sometimes even they have failures when trying to access the network through the Internet. SIM-Users often experience a situation where, after changing the operator or resetting the settings, the device stops transmitting data, limiting itself to voice calls. APN, errors in the software or banal expiration of the tariff plan.
To make mobile Internet on Xiaomi work smoothly, you need to go through several stages of diagnosis, first of all, you need to make sure that the problem lies in the software settings, and not in the physical damage to the communication module or lack of coverage in your region. Often the solution lies in manually editing the access point parameters that are not automatically updated when installing a new one. SIM-map.
In this article, we will analyze in detail the algorithms of actions for all current versions of firmware MIUI And HyperOS. You'll learn how to force it on. 4G/LTE, Where to find hidden menus of engineering settings and what to do if standard methods do not help restore the connection.
Many smartphone owners mistakenly believe that it is enough to just insert a SIM and everything will work on its own, but with frequent changes in the infrastructure of operators and Android updates, manual checking of settings becomes a mandatory procedure for every owner of Redmi or Poco.
Basic verification of network settings and SIM-card
Before you go into complex technical settings, you need to eliminate elementary errors. Often users forget to activate data transfer in the “curtain” of notifications or accidentally transfer the smartphone to aerial mode. Go to the top of the screen, swipe down and make sure that the data icon (two arrows up and down) is lit blue or green, not gray.
It is also important to check the physical condition. SIM-If you haven't changed the SIM in a while, its contacts could oxidize and the chip could damage when removed. Remove the tray, wipe the contacts with soft cloth, and insert the card back, making sure it sits tight. In some cases, it helps to move the SIM to another slot, especially if you use Dual. SIM device.
Make sure that the balance has funds and the traffic limit is not exhausted. Communication operators often block access to the network at zero balance, leaving the opportunity only for incoming calls or access to social networks (if the corresponding package is included). USSD-Your team or application.
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Try restarting your smartphone immediately after insertion SIM-This will force the system to re-read the operator profile and automatically apply the necessary network settings.
Manually configure APN access point on Xiaomi
The most common reason for the lack of Internet access is an incorrect or missing access point. APN (Access Point Name: This is the gateway through which your device connects to the operator's network. If the automatic setup doesn't work, you'll have to manually prescribe the settings. → SIM-maps and mobile networks.
Select the SIM card that the Internet should be using and find the "APN" option. In the list that opens, click the "New Access Point" button or the "+" icon in the upper right corner. Here you will need to enter data that can be found on your carrier's official website. You usually need to fill in just a few fields: Name (name, any), APN (access point address), and sometimes login/password.
Once you have all the data, make sure to click the menu (three dots) and select Save. Then go back to the dot list and activate the one you have created by putting a marker next to it, and without this step, the settings will not take effect, and the Internet will not appear.
☑️ Checklist settings APN
Note the letter register when entering an APN address. Although the system often adjusts the input itself, some operators require that the register be followed accurately or that no extra spaces be left at the end of the line. Also, do not fill in fields that you have not been given the value (such as MCC or MNC), leave them default or empty unless the operator requires otherwise.
Network type selection and forced 4G enablement
Sometimes the smartphone gets stuck in mode 2G or 3G, Even if there is a stable area in the area 4G. This can be due to software errors or power saving settings. To get Xiaomi to use the maximum speed, you need to change the preferred network type. → SIM-maps and mobile networks → Choose. SIM → Preferred type of network.
In the list that opens, select Prefer LTE or 4G (recommended). If there is no or blocked choice in the standard menu, you can use the engineering menu. Dial in the "caller" code ##4636##. In the menu that opens, select "Phone Information".
Find the option “Configure preferred network type” and select a value that contains LTE/TD-SCDMA/GSM or similar to the one marked LTE. Be careful: choosing the wrong mode (for example, LTE only) can lead to a complete loss of communication if there is no 4G coverage in your area.
What to do if the engineering menu code doesn’t work?
It is worth noting that forced 4G on can consume battery power faster, as the communication module will more actively search for the signal of the base station. If you are in the area of unstable reception, it is better to leave the "Auto" mode.
Reset network settings to factory parameters
If manual settings didn't work, you might have built up configuration errors or profile conflicts, and then resetting your network settings is an effective solution, and it's important to understand that this operation won't delete your personal files, photos or apps, but it will reset all Wi-Fi passwords, Bluetooth pairings, and mobile network settings.
To do this, go to Settings → Connection and Sharing → Reset Wi-Fi, mobile networks and Bluetooth. Press Reset and confirm the action with a password to unlock the screen. Once rebooted, the phone will be as new as network connections.
Once reset, the phone will automatically try to download the current operator settings, which often solves problems that arise after updating the firmware or moving to another region. SIM-The card is correctly installed before the process begins.
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Resetting network settings is a safe and effective way to eliminate software conflicts that interfere with the operation of the mobile Internet, without losing user personal data.
Comparison of APN parameters for major operators
For the convenience of users, we have prepared a table with the main parameters of access points for the largest operators in Russia, which is relevant for most tariff plans, but in rare cases (corporate tariffs, old SIM cards) the parameters may differ.
| Operator. | Name (Name) | Access Point (APN) | Login/Password |
|---|---|---|---|
| MTS | MTS Internet | internet.mts.ru | mts / mts |
| Megaphone | Megafon Internet | internet | (leave empty) |
| Beeline | Beeline Internet | internet.beeline.ru | beeline / beeline |
| Tele2 | Tele2 Internet | internet.tele2.ru | (leave empty) |
| Yota | Yota | internet.yota | (leave empty) |
When entering data from the table, carefully monitor the absence of unnecessary characters. APN» (If you have such a choice, you usually choose default, supl or just default. APN better «IPv4/IPv6» for maximum compatibility.
⚠️ Note: If you are using a corporate SIM-card or special IoT tariff, standard settings may not work. APN your system administrator or operator support.
Solving Internet problems after MIUI update
Updating the MIUI or HyperOS operating system sometimes causes unforeseen failures in communication modules. After installing a new firmware version, old configuration files may conflict with new network algorithms. If the Internet disappears immediately after the update, the first thing to do is to reboot the device.
If the reboot didn’t work, try switching network mode to 3G, waiting for the Internet to come along, and then returning the 4G/LTE setting.This maneuver forces the modem to re-register on the operator’s network with updated settings. It’s also worth checking if Traffic Savings mode is activated in the battery settings, which can block background data transfers.
In extreme cases, when nothing works, you may need to reset completely to factory settings (Wipe All Data).Be sure to back up all important data before doing so, as this procedure will remove all information from the phone.
Why did 4G disappear after the update?
Frequently Asked Questions (FAQ)
Why is Xiaomi not running mobile internet, even though there is money in the account?
How to return the default Internet settings to Xiaomi?
Does the installation of two affect SIM-mapping the speed of the Internet?
What if the Internet has not appeared after resetting?
Can you speed up mobile internet on Xiaomi through hidden menus?
⚠️ Warning: Do not download dubious applications from unverified sources that promise “signal amplifier”; they do not have access to the modem hardware and most often contain ads or viruses, only slowing down the system.