Controlling school equipment through a smartphone is not only convenient, it is often necessary. If you are a teacher, a laboratory assistant or a technical manager, the question of how to turn off the Xiaomi projector from your phone will sooner or later become an issue. Especially when the remote control is lost, the batteries are dead, and you can not reach the socket. In this article, we will discuss all the current ways to remotely disable Xiaomi projectors (including models Mi Smart Projector, Mi Laser Projector and Mijia Projector) using a smartphone on Android or iOS.
It's important to understand that school projectors are often connected to a local network or have security restrictions, so standard methods like voice control of Alice or direct commands via Mi Home may not work. We will focus on practical solutions that work even in strict environments. IT-From official apps to workarounds, you'll find a way to fit your situation.
Before you start, make sure that the projector and the phone are on the same network (for example, connected to school Wi-Fi or through Mi Home Hub). If the projector is not smart, but simply connected to the computer via HDMI, you will need other methods (we will talk about them too).
1.Switch off via the official Mi Home app
The most obvious way is to use the Mi Home app (or Xiaomi Home for newer versions), which supports most Xiaomi projectors released after 2018.
- Install the app from the App Store or Google Play (check that the version is up-to-date β older devices may not see new devices).
- Sign in with the same Xiaomi account that the projector is attached to (usually a school support account).
- Add the device manually if it doesnβt automatically appear. To do this, click β+β β βAdd deviceβ β select the βProjectorsβ category.
- Select the projector in the list of devices and use the button βOffβ on the main screen.
If the projector does not appear in Mi Home, check:
- π Is it connected to the same Wi-Fi network as the phone (school networks are often divided into guest and internal networks).
- π Is the projector firmware updated (in the Settings menu) β About the device β Update of the PO).
- π± Does the projector model support control through the application (the list of compatible devices is available on the official website).
π‘
If the school network blocks the connection to the Xiaomi cloud, try using local mode in Mi Home. To do this, in the application settings, turn off the option βCloud Managementβ and connect directly to the app. IP-projector.
2. Control via Mi Remote (Virtual remote)
If the projector is not smart or connected to the Mi Home but supports IR control, you can use the Mi Remote app (available for Android and iOS), which emulates the standard Xiaomi remote and works even without the Internet.
Instructions:
- Download Mi Remote from the official store.
- Select the device type: βProjectorβ β Xiaomi β a specific model (e.g. Mi Smart Projector 2).
- Hover your phoneβs camera over the projectorβs IR port (usually located in the front or top) and press the Power button.
Important nuances:
- π± On the iPhone Mi Remote only works with models that have an integrated IR transmitter (for example, iPhone 12 and later). Android requires an IR port in the phone (check the model specifications).
- π If the projectorβs battery is drained, the IR commands may not work β connect it to the network first.
- π― The distance between the phone and the projector should not exceed 5-7 meters, and the angle of inclination is 30 degrees.
3. Shutdown via voice assistants (Alice, Google Assistant)
If the Xiaomi projector supports voice control (such as models with Google TV or built-in Alice), it can be turned off by the command from the phone.
- π€ Projector connected to the same account Xiaomi/Google, phone-in.
- πΆ The devices are on the same Wi-Fi network.
- π In the settings of the projector voice control is enabled (Settings) β Voice assistant).
Examples of teams:
- Alice: βAlice, turn off the projector in the office.β β5" (if the device is tied to a room in the Mi Home).
- For Google Assistant, βOK Google, turn off Mi Projector.β
Limitations:
- π« On school networks, voice assistants are often blocked due to security policies.
- π If the projector is connected through HDMI-CEC to another device (e.g., a computer), voice commands may be ignored.
How to set up AliExpress to work with Xiaomi devices in school?
4. remote disconnection via computer or laptop
If the projector is connected to a computer via HDMI or USB-C, it can be turned off via a PC and controlled from a smartphone, a method that is suitable for models that do not support direct control via Mi Home.
Ways:
- Through TeamViewer or AnyDesk: Install the program on your school computer and phone. Connect to your PC from your smartphone and turn off the projector via the Start β Finish menu (if the projector turns off with the PC).
Warnings:
β οΈ Note: many schools block remote access to computers due to the risk of data leaks.
| Method | Conditions required | Limitations |
|---|---|---|
| Mi Home | Projector is smart, connected to Wi-Fi | Doesn't work on guest networks. |
| Mi Remote (IR) | Phone with IR transmitter | It only works in the line of sight area. |
| Voice assistants | Projector with AliExpress/Google TV | Blocked in corporate networks |
| Remote access to PC | The computer is on and connected to the projector | Administrator rights required |
5. Alternative methods: third-party applications and workarounds
If the standard methods do not work, you can try:
- π± Applications for management IP (for example, IP Webcam or Unified Remote. They allow you to send commands over a local network, if you know. IP-How to find the projector address. IP Projector: Go to its settings (Network) β Network status) or check the router list of connected devices.
- β‘ Smart sockets. If the projector is connected through a Xiaomi smart socket (such as the Mi Smart Plug), it can be turned off via the Mi Home, thereby turning off the device!
- π§ ADB-commands (for advanced users) if the projector runs on Android TV, You can send a shutdown command through ADB: adb connect [IP-Projector address] adb shell input keyevent 26 Where 26 β power-button.
β οΈ Attention: use ADB Or a forced shutdown can invalidate the projector warranty, and in school settings, this is only permissible with the permission of the person responsible for the technique.
Make sure that the projector and the phone are on the same network
Check the battery power of the projector (if portable)
Write it down. IP-Projector address (for applications over a local network)
Get permission from the network administrator (if required)
Check the compatibility of the projector model with the selected method-->
Frequent problems and their solutions
Even with the right settings, you can have difficulties.
- π΄ Projector does not respond to commands: Check if it is locked in settings (Security) β Control locks: Schools often include protection against accidental shutdowns.
- π Mi Home app doesn't see device: Try resetting projector to factory settings (Settings) β Reset, reconnect, if it doesn't work, the problem is the network settings in the school.
- π΅ IR commands don't work: Make sure there's no obstruction between the phone and the projector. Try bringing the phone closer (1-2 meters).
- π Voice commands ignored: Cloud services are often blocked on school networks. Try using local commands (e.g., offline Google Assistant).
If the projector is connected to the schoolβs smart home system (for example, via Xiaomi Gateway), it may require access to the central control panel to turn it off. IT-Service β independent actions can disrupt the entire system.
FAQ: Answers to popular questions
Can I turn off the Xiaomi projector from my phone if it is connected only on HDMI?
Why doesn't Mi Home see the projector on the school network?
How do you know? IP-projector address?
Can I turn off the projector via Bluetooth?
What if the projector freezes and does not respond to commands?
π‘
Before using any remote control methods, check in IT-Unauthorized disconnection of equipment may result in disciplinary action.