What does LTE in the Xiaomi Redmi phone: decryption and configuration

Xiaomi and Redmi smartphone owners often encounter mysterious status bar icons that vary depending on the signal quality and operator settings. One of the most common symbols is the LTE sign that appears instead of or adjacent to the usual 4G. Many users mistakenly believe that these are two different communication standards, but in fact the situation is much more interesting and requires detailed analysis.

Understanding how mobile internet works on your device is critical to stable connectivity and battery savings. If you notice that your Xiaomi Redmi has lost its 4G icon or LTE has appeared, this is not a cause for panic. In this article, we will discuss the technical essence of the acronym, find out the real differences from the standards of previous generations and learn how to properly configure network settings for maximum speed.

It’s worth noting that modern smartphones, including the Redmi Note series budget models and Xiaomi Mi flagships, support many frequency bands. However, the correct operation depends not only on the hardware, but also on the software settings that the user can control.

Technical decoding and the essence of technology

LTE is derived from Long Term Evolution, which literally translates as “long-term development.” It is not a full-fledged 4G in the strict technical sense, but a transition technology between 3G and the current fourth generation of communications, and engineers created this standard to ensure a smooth transition to higher speeds without the need for a complete replacement of the carrier infrastructure.

In the context of Xiaomi and Redmi smartphones, this sign means that your device has connected to a packet-based network using advanced signal encoding techniques, which allows speeds far beyond 3G, but still optimized energy consumption. For the user, this means fast page loading, stable video streaming, and low ping in online games.

It is important to understand that LTE and 4G are often interchangeable in the MIUI interface, and developers can display one of these icons depending on regional settings or firmware version. In some countries, the de facto standard has become the LTE icon, while in others, the classic 4G designation is preferred, although the technical basis remains the same.

Technology uses principle OFDMA It allows a single base station to serve hundreds of users simultaneously without a significant drop in speed, which allows your Redmi to maintain a stable connection even in a crowded subway or at a mass event where the usual speeds are not very high. 3G-The nets would have fallen long ago.

Key differences between LTE and 4G in MIUI

While these terms are often used synonymously in everyday usage, the technical difference is that true 4G (IMT-Advanced) should deliver speeds of up to 1 Gbps statically, whereas LTE offers speeds of up to 100-300 Mbps in motion. However, real carrier networks rarely achieve these rates, so the difference is almost invisible to the user.

In Xiaomi and Redmi smartphones, the icon display depends on the operator configuration file and regional firmware. If you see an LTE icon, it means the phone is running in pseudo-4G mode, which is technically an improved 3.75G. This is the most common scenario for most subscribers around the world.

There is also LTE-Advanced technology (often referred to as 4G+) that combines multiple frequency bands to increase bandwidth. If your Redmi supports frequency aggregation, you can see the corresponding icon indicating the maximum available speed in a given area.

⚠️ Please do not force your phone to switch to “only” mode. LTE» This can lead to a complete lack of voice communication, as VoLTE technology is not supported by all operators.

The difference is also in delays.LTE provides less ping compared to 3G, which is critical for video calling and online gaming. Xiaomi smartphones automatically choose the best available standard, but sometimes manual selection can help in areas of uncertain reception.

How to enable and configure LTE on Xiaomi Redmi

In most cases, modern Xiaomi and Redmi smartphones automatically detect the available networks and connect to the fastest. 4G/LTE or the Internet is slow, check the settings manually.

Open Settings, then select About Phone or go straight to SIM-And there's a key switch that's responsible for the type of network. SIM-The card is activated by the slider "Use" LTE».

If the standard path is not working, you can use the engineer's hidden menu, but you should do it carefully. Enter the code ##4636## in the Phone app. In the menu that opens, select Phone Information and find "Configure preferred network type."

In the preference list, select LTE/TD-SCDMA/GSM (auto connect) or the same option where the word LTE is present. This will force the phone to look for fourth-generation networks in priority.

Table of comparison of network characteristics

To better understand what your Xiaomi Redmi gets when it connects to different standards, consider a comparison table that will help you estimate the performance gains from the transition from 3G to LTE.

As you can see from the table, switching to LTE brings significant gains not only in download speed, but also in network responsiveness. For Redmi owners, this means more comfortable using the navigator and messengers on the road.

Consider that real performance depends on the operator’s workload and distance, and the difference between LTE and 4G+ can be huge under ideal conditions, but it often becomes blurred in urban areas.

Why LTE is not working: the main problems

If your Xiaomi LTE icon is missing or the Internet is no longer running at high speed, there may be several reasons, most often the problem lies in the settings of the APN hotspot or outdated modem firmware, check if your operator settings are correctly specified.

Another common cause — SIM-If your SIMKE is bigger than your old SIMKE 5-7 It may not be physically up to the standards. 4G. In this case, you need to contact the communication salon for a free replacement of the card with new support. USIM.

⚠️ Note: If you have reflashed the phone to the global version (Global) ROM) Chinese, absent LTE The Chinese versions often lack the bands important for Europe and the CIS. B7 and B20.

It's also worth checking the data plan. Some carriers automatically turn off LTE access if you run out of high-speed traffic pack, transferring the connection to EDGE (2G) without notice. Call customer support to check the status of services.

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Try to turn on flight mode for 10 seconds and then turn it off, which will force the phone to re-register online and often help to “catch” LTE where it disappeared.

The Impact of LTE on Autonomy and Battery

Many people have noticed that running LTE quickly puts down the battery. Indeed, a 4G module consumes more power than 2G, but modern processors at Xiaomi and Redmi have learned to manage this process efficiently.

The main flow occurs when the network signal is weak (1-2 division), the phone constantly increases the transmitter power to hold the connection, which leads to heating and discharge, in such cases, it makes sense to temporarily switch to 3G.

To save charge in MIUI There's a smart modem feature that lets you turn off the mobile Internet when the device is connected to Wi-Fi. LTE-module and retains battery charge.

Nevertheless, refuse to LTE save up 10-15% The speed of the applications and the lack of "hangs" when downloading content completely compensate for the slightly higher power consumption. 5000 MAC easily cope with such a load during the day.

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A stable LTE signal consumes less power than a constant network search in 3G/2G mode. If you are in a confident reception zone, leaving LTE on is more profitable for the battery.

FAQ: Frequently Asked Questions