How to use Xiaomi phone as a modem: USB, Wi-Fi and Bluetooth

Xiaomi's modern smartphones are not just phone and social media devices, but also full-fledged mobile Internet tools. The ability to turn a phone into a modem will come in handy when you're on a business trip, in the country, or when the main connection suddenly disappears. But how to properly configure the distribution so you don't face operator restrictions or compatibility problems? In this article, step-by-step instructions for all methods (Wi-Fi, USB, Bluetooth), tips for troubleshooting errors and hidden settings that are not written in the official manuals.

Many users mistakenly think that to distribute the Internet, you just need to turn on the access point in your settings. In practice, there are often connection problems, carrier traffic restrictions or sudden communication interruptions. We will analyze not only basic settings, but also advanced tricks, from changing the Wi-Fi channel to bypassing mobile network locks. And you will learn why the Redmi Note 12 can distribute Internet faster than the flagship Xiaomi 14, and how to fix it.

If you’ve never set up a modem on Xiaomi, start with the USB- section, which is the most stable and energy-efficient way to connect. For power users, the MIUI hidden settings block will be useful, which allows you to increase the speed of the transfer to 30-40%. And don’t forget to check out the FAQ at the end of the article, which dismantles the most common errors, including IP- conflicts and driver problems on PCs.

1.Phone Preparation: What to Check Before Setup a Modem

Before you turn Xiaomi into a modem, make sure the device is ready for this task.

• 📶 Mobile network: the phone must catch 4G/5G (check Mobile Network → Network type in settings). If it is "Only 3G", the rate of distribution will be 5-10 times lower.
• 🔋 Battery charge: With USB- handoff, the phone will slowly discharge, and with Wi-Fi/Bluetooth very quickly (up to 1% per minute!).
• 📱 Version MIUI: Older firmware (below MIUI 12) may not have options for a Bluetooth modem. Update system in Settings → About Phone → System Update.
• 🔒 Operator restrictions: Some tariffs block the distribution of the Internet (for example, the Internet for devices from MTS). Check the tariff conditions or temporarily connect the option "Modem".

Pay special attention to the power saving settings. Xiaomi has default activated features that can automatically turn off the distribution when the screen is locked.

1. Go to Settings → Battery and Performance.
2. Select Battery Consumption Management for applications.
3. Find the modem modem (or access point) in the list and install it without restrictions.

⚠️ Warning: Phones with MIUI 14+ may reset mobile network priority after the upgrade. If the speed of the transfer suddenly drops, check Settings → SIM- maps and mobile networks → Network priority – there should be 4G/5G, not “Auto”.

2. Wi-Fi Internet Distribution: Setting up the Access Point

The most versatile way is to turn Xiaomi into a Wi-Fi router, which you can connect a laptop, a tablet or even another phone to, plus: it works wirelessly, supports several devices at the same time. Cons: it quickly puts down the battery and can brake when the network signal is weak.

Step-by-step:

1. Open Settings → Modem Modem and Access Point (on some models, path: Settings → Connections → Access Point).
2. Slip on the Wi-Fi hotspot.
3. Turn on the slider at the top of the screen.
4. Click Access Point Setting to change: 🔐 Network Name (SSID): come up with a unique (do not leave the standard Xiaomi_1234). 🔒 Password: minimum 8 characters, with numbers and letters (example: MiHotspot2026!). 📡 Range: select 5 GHz for higher speed (but shorter range) or 2.4 GHz for better compatibility with older devices.

Hidden settings for experienced users:

If the speed is low, try changing the Wi-Fi channel manually (it is automatically selected by default, but it may conflict with other networks).

1. Install the WiFi Analyzer app from Google Play.
2. See which channels (1-14 for 2.4 GHz or 36-165 for 5 GHz) are least loaded.
3. In the Xiaomi access point settings, select a free channel manually (the option appears after clicking on Additional).

How to set up:

1. Connect your phone to your PC/laptop via the original USB- cable (cheap cables may not be transmitting data!).
2. On the phone, in the notification that appears, select Data Transfer (or USB- modem).
3. If the notification does not appear, open Settings → Connected Devices → USB and select USB- modem.
4. On your PC, check the connection: 🪟 Windows: open Control Panel → Network & Internet → Network Connections. A new Remote NDIS connection should appear. 🍎 MacOS: go to System Settings → Network – Xiaomi interface will appear there.

On phones with a Qualcomm chipset (for example, Redmi Note 11), the USB- modem works more stable than on devices with MediaTek (POCO M4 Pro).

Solving the problem:

• 🔌 PC can't see the modem: try another USB- port (preferably USB 3.0 blue). On Windows, install drivers from the Mi PC Suite.
• 🌐 No Internet access: Check that the phone is on mobile internet (sometimes it turns off automatically when connected via USB).
• ⚡ Slow speed: Turn off other network connections (Wi-Fi, Ethernet) on your PC – they may conflict with the USB- modem.

💡

If the USB- modem is often disabled, try the developer settings (Settings → About Phone → MIUI version – tap 7 times) to disable the Debugging option on USB. Sometimes it conflicts with the modem modem.

4. Internet distribution via Bluetooth: when it comes in handy

Bluetooth modem is the lowest-energy method, but also the slowest (speed rarely exceeds 5-10 Mbit / s).

• 📄 Transfers of small files (mail, messengers).
• 🎧 Connect devices without Wi-Fi (e.g., smartwatches or an old tablet).
• 🚗 Use in a machine where there is no USB- port.

Instructions:

1. Turn on Bluetooth on both devices.
2. On Xiaomi phone, open Settings → Modem Modem and Access Point → Bluetooth modem.
3. Connect the second device to your phone via Bluetooth (enter a confirmation code if required).
4. On a connected device (such as a laptop) in Bluetooth settings, find your Xiaomi and select Connect via → Access Point.

Limitations:

• 🐢 Maximum speed is up to 3 MB/s (vs. 10-50 MB/s for Wi-Fi).
• 🔄 Only one device is supported at a time.
• 🔋 Battery consumption is higher than standby but lower than Wi-Fi.

⚠️ Warning: On some Xiaomi models (e.g. Mi 11 Lite), the Bluetooth modem may not work with Windows 10 devices due to driver issues. Solution: Update your Bluetooth drivers on your PC or use special software like BlueSoleil.

5 Hidden MIUI settings to increase speed of distribution

If standard settings don’t provide enough speed, MIUI has hidden options that can be changed through the developer menu or engineering menu.

How to turn on the developer mode:

1. Go to Settings. → The phone.
2. Tap 7 times on the MIUI version.
3. Enter a pattern lock or password if required.

Optimization of distribution:

• 📶 Forced Mode LTE: From the developer menu (Settings → Additional → Developer) find Network Type and select Only LTE. This will turn off automatic switching to 3G/2G, which will increase speed.
• 🔄 Disable background traffic restriction: In the same menu, find Background Process Limitation and set Unlimited Modem Modem.
• 📡 Modification MTU (only for USB-modem): Using ADB, execute the command: adb shell settings put global tether_dun_required 0 adb shell ifconfig rndis0 mtu 1500 This will increase the maximum data packet size, reducing delays.

Engineering menu (for advanced):

Type ##4636## on your phone keyboard, then select Phone Information.

• Change Preferred Network Type to LTE Only
• Disable Enhanced 4G LTE Mode if it conflicts with the modem.

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Changing the settings in the engineering menu can lead to unstable network operation. Before experimenting, write down the current settings or take screenshots!

6. Solving common errors

Even after setting up correctly, problems can arise. Let's analyze the top-5 errors and their solution:

If nothing helps:

• 🔄 Restart the phone and connected device.
• 📱 Reset network settings: Settings → SIM-maps and mobile networks → Reset mobile network settings.
• 🔧 Update the phone and driver firmware on your PC.

7. How to circumvent the operator's restrictions on the distribution of the Internet

Many operators (Beeline, Tele2, Yota) block Internet distribution at rates with "unlimited" traffic, and there are legal and illegal ways to circumvent this restriction.

Legal methods:

• 📞 Call the operator and connect the option "Modem" (costs 50-150 ₽/month).
• 🔄 Temporarily change the rate to one where the distribution is allowed (for example, "Unlimited for devices" at MTS).
• 🌐 Use VPN on a connected device (not always working, but sometimes helps).

Technical workarounds (at your own risk!):

• 🔧 Change TTL: Operators block the distribution by checking the value of TTL (packet lifetime). To change it: Install Termux from Google Play. Enter the commands: pkg install tsu tsu echo 65 | tee /proc/sys/net/ipv4/ip_default_ttl Reboot the phone.

⚠️ After that, some sites may open more slowly, and the operator may block the SIM- card for violating the rules.

Use of proxy

Set up a proxy server on your phone (e.g. 192.168.1.1:8080) and connect to it from your PC. Traffic will go as normal, not modem.

⚠️ Warning: Changing TTL or using VPN to circumvent the restrictions may be considered a violation of the operator's user agreement. In the worst case, it will lock SIM- the card without recovery. The legal way is to connect the official modem option.

8. Comparison of distribution methods: which to choose

Each method has its pros and cons, and here is a comparison table to help you choose the best option:

Selection recommendations:

• 🏠 At home or in the office: Use the USB- modem, which is the most stable and does not run out of battery.
• 🚗 On a trip: Wi-Fi is fine if you need to connect multiple devices, or Bluetooth if the minimum charge consumption is important.
• 🎮 For online gaming: USB only – it has minimal latency (ping).

💡

If you need a modem on a regular basis (for example, for work), consider buying a separate 4G- router. Even budget models like the Xiaomi Mi Router 4G do better than a smartphone: they do not overheat, have an external antenna and do not discharge.

FAQ: Answers to Frequent Questions