Have you ever wondered how many gadgets are connected to your Xiaomi smartphone right now? Headphones, a fitness bracelet, a smartwatch, a wireless speaker, or even someone else's device that has "clung" to your Redmi without knowing - all of which can affect the autonomy, security and stability of your phone. In this article, we will examine all possible ways to check connected devices, including hidden MIUI settings, which are not known by all users.
The manufacturer doesn’t always make the interface intuitive: for example, the list of Bluetooth-connected devices may not be fully displayed, and some accessories (such as wireless charging or game controllers) don’t make it to the standard menus at all, and we’ll show you where to look for full information, how to disable unnecessary devices, and why it’s important to prevent data leaks through background connections.
1. Verification of connected devices via Bluetooth
The most obvious way is to look at the paired gadgets in Bluetooth settings. However, there are nuances: MIUI does not always show actively connected devices (for example, headphones can be listed but disabled). To see only those devices that are currently interacting with the phone, do the following:
- 📱 Open the Settings. → Connections and sharing → Bluetooth.
- 🔍 At the top of the screen will appear the "Connected" section - only active devices are displayed here (for example, Mi True Wireless headphones or Mi Smart Speaker column).
- 📋 Below, in the “Paired Devices” section, you’ll see a complete list of gadgets ever connected (including those that are now off).
- ⚙️ Click on the gear next to the device name to see details: protocol version, supported profiles (e.g., snippets, A2DP for sound HID keyboard).
If an unknown device appears on the Connected list (e.g., with a type name LE-XYZ123), this may be an indication of unauthorized access.
⚠️ Warning: Unknown devices on the Bluetooth list can be used to spy or steal data.Sever the connection immediately and remove them from the paired ones, then check the phone for viruses using Mi Security.
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If your Xiaomi often loses touch with headphones, try forgetting the device (remove from the list) and pairing again. This solves the problem of failures in 70% of cases.
2. How to see Wi-Fi connected devices (including Mi Share and Miracast)
Xiaomi smartphones can distribute the Internet through an access point or connect to other devices using the Mi Share protocol (for fast file transfer) and Miracast (for broadcasting the screen to the TV).
- Go to Settings. → Wi-Fi.
- Tap on your network name (or access points if the phone is giving out the internet).
- In the window that opens, select Device Management, and you will see all gadgets that use your Wi-Fi (including RedmiBook, Mi TV, or friends’ smartphones).
For the Mi Share protocol (formerly Mi Drop):
- 📲 Open the File Transfer app (Icon with two phones).
- 🔄 At the top of the screen will appear a list of devices ready to exchange data (even if they are not directly connected over Wi-Fi, and use the Internet). P2P-linkage).
If you notice an unfamiliar device on the list, it could mean that someone has connected to your access point without permission.
Change the password from the access point (modem mode menu)
Disable automatic connection to open networks
Turn on the filtering by MAC-addresses (in router settings)
Update your phone to the latest version
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3.Verification USB-connections (debugging, flash drives, accessories)
When you connect your phone to a computer, charger or other device through USB-cable, MIUI can automatically establish a connection in one of the modes: Charging, File Transfer, Photos (PTP) or debugging by USB. To see the current status:
- 🔌 Connect the cable to the phone.
- 📱 Swipe down the notification bar – there will be a message like «USB for charging” or «USB file transfer».
- 🔧 Tap the notification to open the “Use” menu USB» and see the current regimen.
If you suspect your phone is connected to someone else’s device (such as in a public place), check:
- Open the settings → About the phone → version of MIUI.
- Tap 7 times on the MIUI version to activate the developer mode.
- Back to Settings → Additionally. → For developers.
- Find the "Network" section» → «Configuration USB» — The current host will be listed here (for example, MTP transferring files or ADB debug).
⚠️ Note: If you see active debugging in developer mode USB (USB debugging), but not connecting the phone to the computer - this is a sign of possible hacking!
4. Hidden Connections: Smart Devices and Mi Home
Xiaomi smartphones are closely integrated with the Mi Home ecosystem (now Mija), and if you have smart lights, sockets, robot vacuum cleaners or sensors, they can connect to your phone via Bluetooth Low Energy (BLE) or Wi-Fi, even if you don't know it, to check:
- 🏠 Open the Mi Home app (or Mija for new versions).
- 📊 Go to the tab "Profile» → «Settings» → «Smart home».
- 🔗 In the Connected Devices section, you will see a complete list of gadgets tied to your Xiaomi account.
The Mi Home feature is that some devices (like door-opening sensors) can connect directly to your phone via Bluetooth, rather than the router, which means they will be active even without Wi-Fi.
| Type of device | Protocol of connection | How to turn off |
|---|---|---|
| Yeelight smart lamp | Wi-Fi | At Mi Home: The Device → ⚙️ → «Delete» |
| Robot vacuum cleaner Mi Robot | Wi-Fi + BLE | In the appendix: "Settings" → "Untie the device" |
| Mijia temperature sensor | Bluetooth | Disable Bluetooth on your phone or delete it in Mi Home |
| Aqara smart socket | Wi-Fi | In Mi Home: Long press on the device → “Delete” |
Importantly, some smart devices (such as Mi Home Security cameras) continue to transmit data in the background even when you’re not using them, which consumes traffic and battery power.
Smart lamp.
Robot vacuum cleaner
Sensors (doors, temperature)
Smart socket
Security camera
None of the above.
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5. Check connected accessories through MIUI settings
MIUI has a hidden menu that displays all the physical accessories you've connected to, from wireless charging to gaming gamepads, to open it:
- Go to Settings. → The phone.
- Tap several times on the item "Version of the kernel" (or "Version") MIUI» in new firmware) until the message appears "You are in testing mode».
- Return to the main settings menu and open Settings → Additional → Special features → Accessories.
- Here you will see a list of the latest connected devices, including: 🔋 Wireless Charging Pad (Mi Wireless Charging Pad), 🎮 Game Controller (Xiaomi Game Controller), ⌨️ Keyboards and mice (via USB OTG).
This section is useful if you suspect that the phone is interacting with unauthorized accessories. For example, if an unknown device called HID-Device appears on the list, it could be a keylogger (a device to intercept input).
What if an unknown device appears in the list of accessories?
6 How to track connections through Xiaomi account
All devices associated with your Xiaomi account (including phones, tablets and smart appliances) are displayed in a cloud profile.This is handy if you want to see which gadgets are synced with your Mi Account, even if they are now off.
- 🌐 Open your browser and go to account.xiaomi.com (or use the Mi Account app on your phone).
- 🔐 Log in under your login.
- 📱 Go to the Devices section - here will be a list of all the devices tied with the model, serial number and latest activity.
If an unknown device appears on the list (like the Redmi Note 12, which you don’t have), it could mean:
- 🔄 Someone logged into your account on another phone.
- 📦 You sold or gave away your old Xiaomi, but didn’t untie it from your account.
- 🛠️ The phone was in repair and the master connected it to his network.
To remove an unknown device:
- Click on it on the list.
- Select “Delete” or “Exit” (if it is an active session).
- Change your Xiaomi account password for security reasons.
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Check the device list in your Xiaomi account regularly, which is the only way to detect unauthorized access to your data.
7. Additional Tools: ADB and Third Party Applications
If standard methods don't give you a complete picture, you can use advanced tools, for example, through ADB (Android Debug Bridge), you can get a list of all active connections, including system connections.
- Enable debugging over USB (as described in Section 3).
- Connect your phone to your computer and open the command line (or Terminal on Mac/Linux).
- Enter the command: adb shell dumpsy bluetooth_manager It will display a list of all Bluetooth devices, including hidden devices.
- To check Wi-Fi connections, use: adb shell dumpsys wifi
For users not familiar with ADB, there is an alternative – apps from Google Play:
- 🔍 «Bluetooth Auto Connect – Shows Hidden Bluetooth Devices.
- 📡 «Fing scans the network and finds all connected gadgets.
- 🛡️ «Network Analyzer – Analyzes traffic and detects suspicious connections.
⚠️ Note: Network analysis applications require permission VPN Install them only from trusted sources (official Google Play) to avoid infection with viruses.