How to increase the speed of mobile Internet on Xiaomi: proven methods

Mobile Internet on Xiaomi can slow down even with a good signal level, which is a problem faced by owners of both budget Redmi and flagship Mi or Poco. The reasons for slow speed lie in the wrong network settings, operator restrictions, hardware features of the smartphone or even firmware. In this article, we will discuss 12 proven ways to accelerate 4G/5G on Xiaomi – from basic settings to advanced tricks that are not written in the standard instructions.

It's important to understand that speed is not just a phone-specific issue, but also a base station load, operator tariff, and even weather conditions. However, 70 percent of the time, the problem is solved software-based without changing your SIM card or buying a new device. We've tested all the methods on Redmi Note 12 Pro+, Xiaomi 13 Ultra and Poco F5 models, so the instructions are relevant for most devices on MIUI 13/14/15 and HyperOS.

1. Checking the current speed and diagnosing problems

Before you optimize the network, you need to understand where the bottleneck is.

• 📱 Install Speedtest by Ookla or nPerf – they show not only speed, but also ping, jitter and packet loss.
• 📡 Check the network indicator in the notification bar: if instead of 4G+ or 5G burns+ or 3G, Problem in operator settings or coverage.
• 🔄 Run the test 3-5 times in different places (for example, at the window and in the back of the room) – this will help to eliminate the influence of interference.

Note that ping is above 100 ms, which indicates an operator’s network overload or suboptimal data route, and it can help to change the APN or turn on VoLTE (about it in the next section).

⚠️ Note: If the speed in tests is above 50 Mbps, but the pages load slowly, the problem may be in the DNS-servers (see section 4) or within the limitations of a particular site.

2. Optimization of mobile network settings

By default, Xiaomi often chooses the slowest connection options, which can be fixed manually:

1. Open the Settings. → SIM-maps and mobile networks.
2. Choose yours. SIM-map and go to Network Type.
3. Install 4G (preferably) / 5G – even if you don’t have 5G support, this mode will make the phone more active in searching for 4G+.
4. Activate VoLTE and VoWiFi options (if available) – these improve connection stability.

For models with Dual SIM Check if the cards are in conflict with each other. SIM It is used only for calls, disable mobile data for it in the settings, also turn off automatic network selection and manually specify the operator (in the same menu). SIM-maps and mobile networks → Choice of network → Manual scanning).

Set the 4G/5G network mode

Enable VoLTE and VoWiFi

Disable the automatic operator selection

Check the priority SIM-card SIM

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3.Amendment APN: latent

APN (Access Point Name) is the gateway between your phone and the carrier network. Standard APN settings are often not optimized for maximum speed.

1. Go to Settings. → SIM-maps and mobile networks → [yours SIM] → Access points (APN).
2. Click on the current APN profile and write down all the options (or take a screenshot).
3. Create a new APN with these options (for MTS as an example):

For other carriers, you can find APN settings on their official websites. After you save a new profile, reboot your phone and check the speed, sometimes even simply removing old APNs and creating a new one with the same parameters helps.

⚠️ Attention: Incorrect settings APN If the Internet is lost after the changes, return the standard profile or reset the network settings to Settings. → System system → Reset → Resetting network settings.

4. DNS change: circumventing operator restrictions

DNS-Operator servers often slow down the loading of sites due to caching or blocking. DNS (For example, from Google or Cloudflare, it can speed up page opening by 20 to 30 percent. DNS Xiaomi:

1. Install the DNS Changer app (or similar) from Google Play.
2. Choose one of the proposed DNS: 🌍 Google DNS: 8.8.8.8 and 8.8.4.4 ☁️ Cloudflare: 1.1.1.1 and 1.0.0.1 🛡️ AdGuard DNS: 94.140.14.14 (blocking advertising)

Activate. VPN-In-app mode (if required) and check the speed.

For permanent use, you can manually prescribe DNS in Wi-Fi settings (yes, this also works for mobile internet via modem):

Settings → Wi-Fi → Additional → IP settings → Static → DNS 1: 1.1.1.1, DNS 2: 8.8.8.8

A critical nuance: some operators (like Tele2) block third-party DNSs at the network level, in which case only a VPN will help.

5. Disabling background processes and optimizing MIUI

MIUI is known for aggressively optimizing background processes, but sometimes it works too zealously, limiting Internet speeds to save battery life.

• 🔋 Go to Settings. → Battery and productivity → Battery mode and select Performance (not Savings!).
• 🚫 Turn off background restriction for mobile data in Settings → SIM-maps and mobile networks → Transfer of data → Background restriction.
• 🧹 Clear the cache of system applications (Settings) → Annexes → Application management → [three-point] → Clear the cache of all applications).

Also check if the built-in antivirus (Security → Scanning) is slowing down. Sometimes it blocks "suspicious" data packets, leading to lags. If the speed has increased after the antivirus is turned off, add frequently used applications (such as a browser or messengers) to the whitelist.

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After the update MIUI The Internet has become slower, try to roll back to the previous version of the firmware via Fastboot or Recovery. 4PDA model-themed.

Hardware methods: antenna and SIM-map

If the software methods did not help, the problem may be in the hardware:

• 📶 Check it out. SIM-Card: Older cards (especially Mini-SIM) do not support 4G+ and 5G. Replace it with Nano-SIM in the operator's cabin.
• 📡 Antenna: In some Xiaomi models (e.g. Redmi Note 10 Pro), the antenna is located at the bottom of the body.If you hold the phone in your hand, the signal may be weakened. Try using a case with a metallized back panel or holding the device at a different angle.
• 🔌 Modem mode: if you distribute the Internet to other devices, turn on USB-Modem instead of Wi-Fi access point – it is more stable and faster.

To check the signal quality, use the engineering menu (code for login: ##4636##). In the Network Information section, note the parameters:

• RSRP (signal 4G/5G): optimal value - from -80 dBm to -110 dBm.
• SINR (signal/noise ratio): should be above 10 dB.

⚠️ Attention: If RSRP worse -120 dBm, the carrier coverage problem is that no phone settings will help, and in this case, you should consider buying a signal repeater or changing the operator.

7 Advanced Methods: MTU, TCP and the System Core

For power users, there are a few hidden settings that can speed up the internet significantly:

• 🔧 Change of change MTU: optimality 4G — 1420. To establish it, you need root rights or ADB-Adb shell settings put global mobile_data_mtu 1420
• 🌐 TCP-Buffer: Increase the size of the buffer to 4MB through ADB: adb shell settings put global tcp_buffer_sizes 4096,87380,2097152,4096,16384,2097152
• ⚡ System core: Some firmware (e.g. Pixel Experience) are optimized for speed. TWRP, But it's risky for newcomers.

These methods require an unlocked bootloader and can cause the phone to run unstable.Before experimenting, back up via Mi Cloud or TWRP.

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ADB-The commands and kernel changes give you up to 30 percent speed gain, but they're only suitable for advanced users. APN and DNS.

8.Alternative solutions: VPN and external devices

If all methods have been tried, but the speed remains low, try:

• 🔒 VPN: Some services (e.g. Warp)+ Cloudflare's speeding up loads by optimizing routes. VPN They often slow down the connection themselves.
• 📡 External modem: USB-modems (e.g. Huawei) E3372) Sometimes they work faster than the smartphone’s built-in antenna.
• 📶 Signal Repeater: If the problem is weak coverage, devices like Xiaomi Mi WiFi Repeater 2 can boost the signal 4G.

It is also worth checking whether your tariff plan limits speed. For example, Tele2 after exhausting high-speed traffic, the speed drops to 64 Kbps, and MTS - to 128 Kbps. Check the conditions with the operator or temporarily connect the option with unlimited Internet for the test.

FAQ: Frequent questions about speeding up the Internet on Xiaomi