Contents
- Preparation: What to check before connecting
- Wireless broadcast over Wi-Fi (Miracast/DLNA)
- Connection via HDMI: adapters and cables
- USB-C โ HDMI: direct-to-digital
- Using the Xiaomi (Mi Home) Ecosystem
- Typical problems and errors when connecting
- Comparison of projector model compatibility
- Frequent questions about setting up
Outputting your smartphone to the big screen through a Xiaomi projector opens up new possibilities, from watching high-resolution movies to presentations and games on a screen up to 300 inches. However, many users face difficulties when connecting for the first time โ the projector does not find the phone, the picture slows down or the sound is transmitted with a delay. In this article, we will analyze all the current ways of connecting, including wireless protocols and wired adapters, taking into account the features of different models of the Mi Projector (from the budget Mi Smart Projector 2 to the flagship Xiaomi Cinema 2 Pro).
It's important to understand that the way you connect depends on three things: the projector model, the Android version on your phone, and the quality of the broadcast you want. USB-C โ HDMI, And Miracast is a wireless video experience, and we tested each method on devices from 2022 to 2026, and we identified key time-saving features.
Preparation: What to check before connecting
Before you start setting up, make sure that both devices meet the minimum requirements:
- ๐ฑ Smartphone: Android 8.0+ (for Miracast or Android 10+ (For wireless audio broadcasting, only AirPlay is available on iPhones via third-party apps.
- ๐ฅ Projector: Update the firmware to the latest version (check in Settings) โ About the system โ Update: Older versions may not support Wi-Fi Direct.
- ๐ Power: connect the projector to the socket โ with a low battery charge (less than 20%) it can turn off wireless modules.
- ๐ถ Network: For stable broadcasting, the router must support 5 GHz (or use a direct projector access point).
Critical detail: projectors Xiaomi series Mi Smart Projector 2 and newer automatically switch to presentation mode when detected HDMI-signal, but wireless broadcasting requires manual Miracast inclusion in the Settings menu โ Connections โ Wireless broadcasting.
Make sure your phone and projector are on the same Wi-Fi network
Disable VPN and power saving modes on your phone
Check for availability of free ports HDMI/USB-C projector
Update the projector firmware to the current version
Prepare an adapter (if a wired connection is used)-->
If you plan to stream content from Netflix, Disney+ or other streaming services, note: many of them block the output through Miracast due to protection DRM. In this case, you will have to use HDMI Google Cast (if the projector supports Chromecast).
โ ๏ธ Attention: When in use USB-C โ HDMI Adapter on Xiaomi smartphones with Snapdragon 8 Gen 2 processor+ (For example, Xiaomi 14 Ultra may need to enable Debugging mode USB In Settings โ The phone. โ Version. MIUI (7 times press).
Wireless broadcast over Wi-Fi (Miracast/DLNA)
The most versatile way is to use the Miracast protocol, which is built into most modern Android devices, which allows you to duplicate the phone screen on a projector without wires, but with a small delay (about 100-150 ms), which is critical for games, but not noticeable when watching video.
Instructions for Xiaomi Mi Projector projectors 2/3/4K:
- On the projector: go to Settings โ Connections โ Wireless broadcast and turn on Miracast.
- On the phone: open Settings โ Connections โ Screen broadcast (on MIUI The path may be different: Settings โ Screen. โ Broadcasting).
- In the list of available devices, select your projector (the name will be in the format). MI_PROJECTOR_XXXX).
- Confirm the connection on both devices.
If the projector is not listed:
- ๐ Reboot both devices.
- ๐ก Make sure your phone and projector are connected to the same 5GHz Wi-Fi network (or use a direct projector access point).
- ๐ง On your phone, turn on developer mode and activate the Wireless Display in Settings โ System system โ For developers.
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If the picture slows down, reduce the resolution of the broadcast in the Miracast settings on the phone to 720p โ This will reduce the load on the processor and improve smoothness.
To broadcast only video (without duplication of the entire screen) you can use the protocol DLNA via apps like LocalCast or BubbleUPnP. This is useful for viewing movies from the gallery or from the gallery. NAS-sound-delayed.
| Protocol | Delay. | Max, permission. | Sound support | Energy consumption |
|---|---|---|---|---|
| Miracast | 100-150 ms. | 1080p | Yes. | Average. |
| DLNA | 50-80 ms. | 4K (depends on the file) | Yes. | Low. |
| Google Cast | 200-300 ms. | 1080p | Yes. | High. |
| AirPlay (via apps) | 150-250 ms | 1080p | Yes. | High. |
Connection via HDMI: adapters and cables
For minimal delay (important for games or presentations), it is better to use a wired connection through the Internet. HDMI. Xiaomi smartphones donโt have a port HDMI, So you'll need an adapter. Here's what works:
- ๐ USB-C โ HDMI: It's the most reliable way. It's the most reliable way. USB 3.1+ (for example, Xiaomi 13T Pro, Redmi Note 12 Pro+). Recommended adapters with DisplayLink chip for stable operation.
- โก USB-C โ HDMI (Support for DisplayPort Alt Mode: Allows you to 4K@60Hz Projectors on Xiaomi Cinema 2 Examples of adapters: Anker 310, Baseus 6-in-1.
- ๐ฑ Micro-USB โ HDMI: Relevant to older models (Redmi) 5/6). Look for support adapters MHL (Mobile High-Definition Link).
Step-by-step:
- Connect the adapter to the phone and then connect it to the projector cable HDMI.
- On the projector, select the source of the signal: HDMI 1/2 (port-by-port).
- A request for permission to display an image may appear on the phone - confirm it.
- If the screen is not duplicated, go to Settings โ Screen โ HDMI Mode and choose Duplicate or Expand.
Important nuance: when using adapters without external power (USB-C โ HDMI) Xiaomi projectors may not recognize the signal due to insufficient power:
- Use an adapter with an additional port USB-A for power (connect to charging).
- Check the settings. USB on the phone: go to Settings โ Special facilities โ Regime. USB and select File Transfer (MTP) Or just charging.
Why the projector canโt see the phone through the phone HDMI?
โ ๏ธ Note: When connecting through HDMI on Xiaomi projectors with Android TV (For example, Mi Projector 2 Pro, you might have a permission conflict. To fix this, press the projector remote. OK + Menu for 5 seconds to reset display settings.
USB-C โ HDMI: direct-to-digital
This is the most modern and stable way of connecting, which supports all flagship Xiaomi smartphones since the Mi 10. HDMI, DisplayPort Alt Mode protocol is used here, which transmits a signal without loss of quality and with minimal latency (less than 50 ms).
What you need:
- ๐ Cable USB-C โ HDMI with support for Alt Mode (for example, UGREEN 4K@60Hz Anker PowerExpand).
- ๐ฑ Smartphone with port USB 3.1 Gen 2 (List of supported models: Xiaomi 12/13/14 series, Redmi K50/K60, POCO F4/F5).
- ๐ฅ Port projector HDMI 2.0+ (All Xiaomi models after 2020).
How to connect:
- Connect the phone and projector with a cable USB-C โ HDMI.
- On the projector, select the source. HDMI (is usually automatically determined).
- The phone will be notified of the connection of the external display โ click Allow.
- If necessary, change the display mode in Settings โ Screen. โ Regime. HDMI.
Advantages of this method:
- ๐ฎ Minimum input delay โ ideal for games (Call of Duty Mobile, Genshin Impact).
- ๐บ Support 4K@60Hz and HDR10 compatible.
- ๐ Low energy consumption compared to Miracast.
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USB-C โ HDMI Alt Mode is the only way to get out 4K@60Hz From phone to Xiaomi projector without loss of quality and delays.
If the image does not appear:
- Try another cable โ many cheap options donโt support Alt Mode.
- Turn off the power saving mode for the port USB.
- Update the projector firmware โ in older versions there could be a bug with DisplayPort recognition.
Using the Xiaomi (Mi Home) Ecosystem
If you have other Xiaomi devices (such as Mi Box or Mi) TV Stick, you can stream through the Mi Home app, and it's a method that's convenient for controlling a projector from your phone and transmitting content wirelessly.
How to set up:
- Install the Mi Home app on your phone and log in to your Xiaomi account.
- Add the projector to the app: press + โ Add the device โ Projectors and follow the instructions.
- After connecting, open the projector card in Mi Home and select Screen Translation.
- On the phone, confirm the connection request.
Features of this method:
- ๐ It works even if the phone and projector are on different networks (via the Xiaomi cloud).
- ๐ฑ Allows you to control your projector via Alice or Google Assistant.
- โ ๏ธ Latency can reach 300 ms โ not suitable for dynamic games.
For Mi Projector 2 Pro and later, Mi Share is available, which automatically detects devices on the local network to activate:
- On the projector: Settings โ Connections โ Mi Share โ Turn on.
- On your phone: Open the notification curtain and click on the Mi Share icon (or find in Settings). โ Connections).
- Select a projector from the list and confirm the connection.
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If Mi Share doesnโt find the projector, check that the phone is powered on Bluetooth โ itโs used for initial device synchronization.
Typical problems and errors when connecting
Even with the right setup, you can have failures, and we've collected some of the most common errors and ways to fix them:
| Problem. | Possible cause | Decision |
|---|---|---|
| Projector doesn't see phone over Wi-Fi | Different Wi-Fi networks (2.4 GHz vs 5 GHz) | Connect both devices to the same 5GHz network or use a projector access point |
| Sound is transmitted, but the image is not. | Screen permission conflict | On the phone, set the broadcast permission manually (720p or 1080p) |
| The picture slows down or tears. | Weak Wi-Fi signal or processor overload | Reduce resolution, close background apps, or use HDMI |
| Black screen when connected via HDMI | Incompatible adapter or cable | Try an externally powered adapter or check for Alt Mode support |
| Netflix/Disney+ nonreproduce | DRM (Widevine L1) Limitations | Use the official application on the projector or HDMI-connection |
If the Xiaomi projector is permanently shut down during the broadcast:
- ๐ Check the power supply - use the original adapter on the 65W (lamp-model).
- ๐ก๏ธ Make sure the projector vents are not closed โ overheating leads to emergency shutdown.
- โ๏ธ Reset network settings on the projector: Settings โ System system โ Resetting the network.
โ ๏ธ Attention: On Xiaomi projectors with Android TV (For example, Mi Projector 2 Pro, when connected via a HDMI may trigger protection HDCP, To get around this, you can project any video you want to use on your projector through YouTube before you plug in your phone, and that'll drop the restrictions.
Comparison of projector model compatibility
Not all Xiaomi projectors work equally well with phones, and we tested popular models and compiled a compatibility table:
| Projector model | Miracast | HDMI (Alt Mode) | USB-C โ HDMI | Mi Home | Max, permission. |
|---|---|---|---|---|---|
| Mi Smart Projector 2 | Yes (1080p) | No. | Yeah (with adapter) | Yes. | 1920ร1080 |
| Mi Projector 2 Pro | Yes (4K) | Yes (4K@30Hz) | Yes. | Yes. | 3840ร2160 |
| Xiaomi Cinema 2 Pro | Yes (4K HDR) | Yes (4K@60Hz) | Yes. | Yes. | 4096ร2160 |
| Mi Smart Projector Youth | Yes (720p) | No. | Yes (with limitations) | No. | 1280ร720 |
| Xiaomi Portable Projector | Yes (1080p) | No. | Yes (requires food) | Yes. | 1920ร1080 |
For models 2023โ2026 years (e.g. Xiaomi Cinema) 2 Pro) the manufacturer recommends using a proprietary adapter Xiaomi USB-C to HDMI (articular MDZ-32-DB), guaranteed to support 4K@60Hz and HDR.
If you have an old projector model (before 2020), check for a port. MHL โ It allows you to connect your phones via Micro-USB with a special adapter, but this method is outdated and only works with phones on Android 9 and below.