How to improve the Internet on a Xiaomi smartphone: from basic settings to hidden chips MIUI

Slow internet on Xiaomi is a problem that one in three users face, and the reasons may lie in the settings. MIUI, In this article, we will explore unique optimization techniques that are not found in standard instructions, including hidden developer settings, selecting priority networks, and even hardware tricks for older models.

It's important to understand that Internet speed depends on three key factors - firmware (especially on custom builds), iron (modems and antennas), and the environment (tower congestion, Wi-Fi interference, POCO X5 Xiaomi 13T, to identify the most effective solutions for different scenarios - from urban conditions to the outback with a weak signal.

If you've tried rebooting your phone or resetting your network settings, that's just the tip of the iceberg. MIUI, Speed tests explaining the results and even tips for choosing a SIM card for maximum performance.

1. Diagnostics of the problem: how to understand what exactly is slowing down the Internet

Before you optimize, you need to identify the bottleneck. Xiaomi smartphones have built-in diagnostic tools, but they're hidden deep in the menu.

Open the Settings. → The phone. → Version. MIUI and tap 7 times on the "Kerole" line, which will open developer mode. → Additionally. → For developers and find:

• 📊 Network statistics – shows the current download/return speed in real time (relevant for checking while watching videos or downloading files).
• 📡 Mobile network information – displays the type of connection (4G/5G), signal level in dBm and even tower identifier (MCC/MNC).
• 🔄 Network Log – Records all network events (useful for link breakdown analysis).

For a deeper diagnosis, use third-party applications:

• 📱 NetMonster (shows detailed information about the tower, including loading and supported frequencies).
• 📈 Speedtest by Ookla (Run the Test in Different Places at Home to Find Dead Zones»).
• 🛡️ Ping & DNS (Checks delays to Google, Cloudflare and your provider).

⚠️ Note: If you see the signal value below in the mobile network information -100 dBm, that's a critically weak level, and then there's no software setting that's going to help, so you need an external antenna or a change of operator.

2. Mobile Internet Optimization: Network Selection and Hidden Settings MIUI

Xiaomi automatically selects the type of network (2G/3G/4G/5G), But this algorithm is far from perfect. 4G The phone can cling to a weak signal instead of a stable one. 3G, resulting in permanent breaks.

To manually set priorities:

1. Go to Settings. → SIM-maps and mobile networks → [Yours. SIM] → Type of network.
2. Select Only. LTE (if 4G-map 3G/4G (Auto) for balance between speed and stability.
3. For models with 5G (for example, Xiaomi 13 Pro, try the mode LTE/5G, But keep in mind that 5G discharges the battery faster.

Hidden chip MIUI: Forced network mode: This option allows you to block the switch to 2G, And that's true for regions with unstable surfaces:

1. Activate the Developer Mode (as described above).
2. B Settings → Additionally. → For developers, find mobile network settings.
3. Choose Forced. LTE only (compulsory) 4G).

Disable automatic network selection|Prioritize LTE/5G manually|Activate forced LTE mode|Check it out. APN-provider settings|Disable VoLTE if there are problems with calls-->

Another important parameter — APN (access point) Incorrect settings APN slow down 30-50%. Check the current parameters with your operator and enter them manually in Settings. → SIM-map → [Yours. SIM] → Access points (APN). For example, for MTS in 2026 current:

3. Wi-Fi Acceleration: Channel Selection, Standard, and Hidden Router Features

If the Internet problem is only Wi-Fi, it's either the router or the phone settings that are at fault.

Install the WiFi Analyzer app and check:

• 📶 Channel congestion: If your channel (e.g. 6) has too many networks, switch to a less congested channel (1, 11, or 40)+ 5 GHz).
• 🔄 Modern Xiaomi supports Wi-Fi 6 (802.11ax), If the router is older than 2019, it can work on the router. 802.11n, Limits speed to 300 Mbps.
• 🛡️ Type of encryption. WPA3 It is safer, but some devices work better. WPA2 (Especially if you have old devices on the internet).

On the smartphone itself, open the settings → Wi-Fi → In addition and:

• Disable Autoconnection to open networks (this will prevent you from connecting to slow public points).
• Activate Smart Switching (if Wi-Fi signal is weaker) 2G/3G, The phone will automatically switch to mobile internet).
• Enable Wi-Fi High Performance Mode (not available on all models, but it speeds up file downloads significantly).

For Xiaomi router owners (e.g. Mi Router) 4A or AX3600) There are extra tricks:

• 🎯 Enable Band Steering (automatic switching between 2.4 GHz and 5 GHz).
• 🔧 Disable Mu-MIMO if there are many older devices on the network, which can cause conflicts.
• 🔄 Update the router’s firmware to the latest version (in Mi WiFi, it is done in one click).

4. Software methods: cleaning the cache, DNS background restriction

Even with a perfect signal, the speed can drop due to an overloaded system. There are several ways to free up resources on Xiaomi:

Clearing the cache DNS (If the site loads for a long time, but speed test is normal):

1. Go to Settings → Applications → Application Management.
2. Find Chrome (or another browser) and click Storage → Clear the cache.
3. For a complete reset DNS execute command in ADB: adb shell pm clear com.android.providers.telephony

Restriction of background activity:

• 📱 B Settings → Battery → Select Balanced (not Performance, which allows all applications to run in the background).
• 🔄 B Settings → Annexes → Permits → Autorun disable autorun for unnecessary applications (especially social networks and instant messengers).
• 🚫 B Settings → Special opportunities → Disable notifications from apps that are updated frequently (e.g. news widgets).

Shift. DNS It can speed up the loading of websites on 20-40%. The best public ones DNS Xiaomi:

To change the DNS to Xiaomi:

1. Go to Settings. → Wi-Fi.
2. Tap on your network and select Change the network → Additionally. → Settings IP.
3. Select Static and enter addresses DNS field DNS 1 and DNS 2.

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After the shift DNS Some sites have stopped opening (for example, banking), return settings to default values or use DNS your provider.

5. Hardware solutions: antennas, SIM cards and cooling

If the software methods didn't work, the problem could be the hardware.

SIM card and slot:

• 🆕 Replace the SIM card with the latest nano-SIM (older cards may not support the same card). 4G/5G).
• 🔄 If you have a Xiaomi with two slots (like the Redmi Note 11), try moving the SIM card to another slot – sometimes one of the modules works more stable.
• 📶 For eSIM models (e.g. Xiaomi 13 Lite), check that the operator profile is activated correctly (c Settings) → SIM-map → Add eSIM).

External antennas:

• 📡 For older models (e.g. Redmi) 9A) You can connect an external antenna through MHF4-Connector (requires the disassembly of the phone).
• 🔌 For Xiaomi with a connector USB-C There are antenna adapters (e.g. TP-Link) UE300), But they only work with support. USB OTG.

Overheating is one of the main causes of the speed drop.°The modem starts trottling to avoid this:

• 🧊 Use heat sink covers (such as aluminum covers).
• 🔋 Do not play heavy games while downloading large files.
• 🌡️ Check the temperature through AIDA64 — If the modem is heated above 50°C, dust cleaning is required (at the service center).

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On Xiaomi smartphones with Snapdragon processors 7xx/8xx (for example, POCO F5) The modem is built into the chipset, and when you overheat, not only does the speed of the Internet suffer, but also the performance. GPS Bluetooth.

Alternative methods: VPN, proxying and circumvention

Sometimes slow internet is the result of a provider blocking or restrictions on certain services, and in such cases, it helps:

VPN:

• 🔒 Free of charge VPN (ProtonVPNs can even slow down, but paid ones (NordVPN, Surfshark) often increase due to optimized routes.
• 🌍 Choose servers in the nearest countries (for example, for Russia - Finland or Kazakhstan).

Proxy:

• 📡 Set up a proxy in Settings → Wi-Fi → Change the network → Additionally. → A proxy can help bypass regional restrictions (for example, for accessing Netflix) US).
• ⚠️ Don’t use free proxies – they often steal traffic.

Circumvention DPI (deep-checking):

• 🛡️ Some providers artificially limit the speed of certain services (for example, Torrent or Telegram:
• 🔄 GoodbyeDPI (Android app, masks traffic as normal) HTTPS).
• 📱 Psiphon (combines) VPN, proxy SSH-tunnels).

⚠️ Attention: Use VPN In some countries (e.g. China, UAE) this is prohibited by law.

7.Extreme measures: network reset, firmware and modem replacement

If nothing has worked, radical methods remain:

Resetting network settings:

1. Go to Settings → System → Resetting of settings → Resetting of network settings.
2. Confirm action. This will delete all stored Wi-Fi networks, passwords and mobile Internet settings.

Flip-over:

• 📱 If you have Global ROM, Try to switch over EU ROM (For example, xiaomi.eu – it is often better optimized for the network.
• 🔧 Use the Mi Flash Tool (instructions are available on the 4PDA).

Replacement of the modem (only for power users!):

• 🛠️ On some models (for example, Redmi Note 10 Pro) you can replace the modem chip, but this requires soldering and specialized equipment.
• 💰 The cost of repairs - from 3 000 to 8 000 rubles (depending on the model).

FAQ: Frequent questions about improving the Internet on Xiaomi