How to set the maximum Internet speed on your Xiaomi phone: all the ways

The speed of the Internet on Xiaomi smartphones depends on dozens of factors: from the settings of the operating system MIUI parameterize SIM-Many users are faced with a situation where the phone shows the full sticks of the network, but the pages load slowly, the video slows down, and the downloads are constantly interrupted. In 80% of cases, the problem can be solved without contacting the service center – it is enough to set up the network correctly and optimize the parameters of the phone.

In this article, we will analyze all possible ways to increase the speed of the Internet on Xiaomi – from basic (reboot device) to advanced (manual settings). APN, Resetting network parameters, activation of the mode VoLTE/VoWiFi). We will also focus on the diagnosis of problems: how to determine whether the operator, router or smartphone is to blame, POCO, Mi and Black Shark on base MIUI 12–14 HyperOS.

If you’re not sure where to start, take a quick test: connect your phone to another one. SIM-If you're up, you're in a problem with the operator or router, if you're not, you read on and you set up your smartphone.

Basic checks: what to do first

Before digging deep into the settings, follow 5 simple steps, which solve the problem of slow Internet with no additional manipulation in 30% of cases:

• 🔄 Reboot your phone. Prolonged work without rebooting leads to an accumulation of errors in the communication module. Press and hold the power button, then select "Reboot».
• 📶 Check the signal strength. If the network indicator shows 1-2 divisions, the speed will be low regardless of the settings. Try moving closer to the window or going outside.
• 📱 Make sure the network mode is on correctly. In some regions, Xiaomi defaults to the network mode. 3G instead 4G/LTE. How to change – read the next section.
• 🔌 Turn it off. VPN These services often limit speed. Check Settings. → Connections → VPN.
• 📡 Test speeds in different applications. Sometimes it's not the Internet that's slowing down, but a particular service (like YouTube or TikTok) Use Speedtest or FAST.com to objectively check.

If you don't get any faster after that, then you can move on to the next sections, and if you get bigger, remember, 90 percent of the time, the problem is solved by basic actions, and you don't need to make any deep adjustments.

2. Set up mobile internet (4G/5G) on Xiaomi

Xiaomi smartphones often “forget” the optimal parameters of the network after updates or changes SIM-To manually prioritize the cards. 4G or 5G (If supported, follow the following steps:

1. Open the Settings. → SIM-maps and mobile networks.
2. Choose yours. SIM-card (if there are several).
3. Go to Network Type or Preferred Network Type (the name may vary depending on the version of MIUI).
4. Set one of the values: 4G (preferably) for most users; 5G/4G/3G/2G (auto) if your Xiaomi supports 5G; 4G only if the phone is constantly switching to 3G.

For 5G-enabled models (Xiaomi 12/13/14 series, Redmi K50, POCO F4/F5), activate the option to Enable 5G in the same menu. If you don't have an option, your model doesn't support 5G, or you need a firmware update.

Setting priority 4G/5G|Check support 5G (if necessary)|Disable automatic network selection|Reboot your phone after the changes-->

⚠️ Attention: On some firmware MIUI After manually selecting the type of network, voice communication may disappear. If the calls stop working, return the setting to the Auto or update the software.

3.APN Optimization: Hidden Setting for Speed

APN (Access Point Name is the "entry point" that the operator provides to the Internet. APN may limit the speed to 2G-Even if the phone is showing 4G. Setting up APN Xiaomi takes 2 minutes, but requires accurate data from your operator.

How to change APNs:

1. Go to Settings. → SIM-maps and mobile networks → [yours SIM] → Access points (APN).
2. Click on the current APN profile (usually one) and select Delete.
3. Click Add and enter your operator's settings, below are the latest data for popular Russian operators (2026):

After saving the new APN Reboot your phone and check the speed, and if you're in the right settings, there'll be a dot next to the name of the profile. SIM-map.

4. Wi-Fi acceleration: from channel selection to DNS

If mobile internet is fast and Wi-Fi is slowing down, the problem may lie in the settings of the router or phone, starting with optimizing the connection on the Xiaomi side:

• 📡 Forget the network and connect again. Go to Settings. → Wi-Fi, click on your network, select Delete, then connect again by entering the password.
• 🔒 Change the security type. In the router settings, set it. WPA2-PSK (not WPA3 or mixed mode – this eliminates compatibility issues with MIUI.
• 🌐 Change it. DNS. Default is used DNS operator who may be slowing down. Go to Settings → Wi-Fi → [your network] → Settings IP and set up static, then type in: DNS 1: 8.8.8.8 (Google) DNS 2: 1.1.1.1 (Cloudflare)
• 📶 Turn on 5 GHz mode. If your router supports two frequencies, connect to a network called..._5G. It is less busy and gives more speed.

If the speed of the Wi-Fi has not increased after this action, the problem may be in the router.

• Wi-Fi channel (should be 1–11 for 2.4 GHz or 36–48 for 5 GHz)
• Channel width (optimally 20 MHz for 2.4 GHz and 40 MHz for 5 GHz)
• Operating mode (should be 802.11n/ac or ax, but not b/g).

💡

If you have Xiaomi Router, use the Mi Wi-Fi app to automatically optimize your channels. Smart Wi-Fi will select the least loaded range.

5. Network reset: when nothing helps

If all previous methods fail, the last chance before visiting the service is to reset network settings, which removes all stored Wi-Fi networks, passwords, APN and VPN settings, returning the phone to factory network configurations, application data and files are not affected.

How to perform the reset:

1. Open Settings → About the phone → Reset settings.
2. Select Network Settings Reset (or Wi-Fi, Mobile Network, and Bluetooth Reset in newer versions of MIUI).
3. Confirm the action by entering PIN-code.
4. After the reboot, set up a Wi-Fi and mobile network connection again.

⚠️ Note: Some Xiaomi models (e.g. Redmi Note 10 Pro) POCO X3 Pro) VoLTE may disappear after reset. To return it, go to Settings → SIM-map → [yours SIM] → Enable VoLTE.

If the reset did not help, the problem may be:

• 📱 Hardware malfunction (damaged communication module);
• 🔧 Firmware (requires flashing or rollback to a stable version) MIUI);
• 📡 Operator (tariff restrictions or technical works).

💡

Network reset is a "heavy artillery" that should only be used after all other methods, and 60 percent of the time, the problem is solved at the APN level or network type.

6. Advanced methods: debugging and engineering menu

For experienced users willing to take a chance, there are ways to fine-tune the communication module through the engineering menu and ADB-These methods can greatly increase speed, but if used incorrectly, they can cause network loss.

Method 1: Engineering menu (to change network settings)

1. Open the Phone app and enter the combination: ##4636##.
2. In the menu that opens, select Phone Information.
3. Scroll down to the Set your preferred network type.
4. Select LTE only (4G only) or NR/LTE/TD-SCDMA/GSM (5G only).

Method 2: ADB-commands (for forced activation) 5G)

If your Xiaomi supports 5G, but the option is hidden, you can turn it on via ADB:

adb shell settings put global preferred_network_mode 14


adb shell settings put global nr_enable 1

After you've completed the commands, restart your phone. To reverse the change, use:

adb shell settings put global preferred_network_mode 9


adb shell settings put global nr_enable 0

⚠️ Note: Incorrect commands in the engineering menu or through ADB may result in loss IMEI If you're not sure, don't experiment.

7 Diagnostics of problems: how to understand who is to blame

Before you go to the service, identify where the bottleneck is. Here's a simple diagnostic algorithm:

1. Check the speed on another device (laptop, tablet) on the same Wi-Fi network or with the same Wi-Fi network SIM-If the speed is low everywhere, the problem is in the operator or router.
2. Use the Network Signal Guru app (available in the Play Market) to show the real signal strength (dBm), network type (LTE Band), and channel load.
3. Call the operator and check if there are any tariff restrictions or technical works in your area.
4. Check the temperature of the phone. Overheating can cause trottling (artificial speed restriction). Use the AIDA64 app to monitor.

Typical "symptoms" and their causes:

FAQ: Frequent questions about the speed of the Internet on Xiaomi