Wirelessly transferring images from a Xiaomi smartphone or tablet to a TV, monitor or projector has become an integral part of the modern multimedia experience. Technology allows you to stream movies, games, presentations and even duplicate a desktop without a single wire โ but how exactly does this work under the hood? In this article, we will analyze all the available protocols (Miracast, AirPlay, Wi-Fi Direct), their differences, limitations and step-by-step instructions for Xiaomi devices based on MIUI and HyperOS.
You'll learn why audio delays sometimes occur, how to choose the optimal resolution for broadcasting, and what to do if devices can't see each other. And we've also tested the real performance of a wireless display on Xiaomi 14 flagships and the budget Redmi Note 12 -- the results may surprise you. Let's start with the basics: what technologies underlie the feature, and how they differ.
1. Wireless broadcast technologies: Miracast vs AirPlay vs Wi-Fi Direct
Xiaomi devices have three basic protocols for airborne screen transmission, each with unique features, pros and cons.
- ๐ถ Miracast is a Wi-Fi Alliance standard that works over Wi-Fi Direct. It doesn't require a router, it creates a direct network between devices. It's supported by all Android TVs. TV and most of the Xiaomi smartphones (starting with the MIUI 8).
- ๐ AirPlay is a proprietary protocol from Apple, but Xiaomi has added its support to some models (for example, Xiaomi). TV A2 mi TV Q2). Works only with Apple devices (iPhone, Mac) or through third-party apps on Android.
- ๐ Wi-Fi Direct is the underlying technology behind Miracast, which allows devices to connect directly, but without a standardized screen broadcast protocol, and is used to transfer files or connect peripherals.
The key difference is that Miracast and AirPlay are optimized for multimedia (low latency, audio synchronization), whereas Wi-Fi Direct is just a pipe for data transfer. For example, when playing Call of Duty Mobile via Miracast, the delay will be ~50 ms, and through Wi-Fi Direct without optimization - up to 200 ms.
| Technology | Max, permission. | Delay. | Need a router? | Support for Xiaomi |
|---|---|---|---|---|
| Miracast | 4K@30Hz | 30-80 ms. | โ No. | โ All smartphones, TV on Android TV |
| AirPlay | 4K@60Hz (HDR) | 20-50 ms | โ Yes (or direct network) | โ ๏ธ Only select TVs (A2, Q2) |
| Wi-Fi Direct | 1080p@30Hz | 100-300 ms. | โ No. | โ All devices, but without screen broadcasting |
Important: On Xiaomi smartphones with Snapdragon 8 Gen 2 chipset (such as Xiaomi 13 Ultra), Miracast supports HDR10, whereas on budget models (Redmi 10C), the color range is limited to sRGB.
2.How to turn on the wireless display on the Xiaomi smartphone: step-by-step instructions
The activation algorithm depends on the firmware version (MIUI or HyperOS) and the device model. Below is a universal guide for most smartphones:
- Open Settings โ Connection and Sharing โ Wireless display (in HyperOS, the path may differ: Settings โ Screen โ Wireless monitor).
- Activate the Wireless Display slider (on some models - Miracast).
- From the list of available devices, select your target TV or monitor. If you don't have one, make sure that the TV is on Screen Mirroring (on Xiaomi TV, this is Settings โ Network โ Wireless Display).
- Confirm the connection on both devices. On the screen of the smartphone will appear a notification of the successful broadcast.
On Xiaomi Pad 6 and other tablets, the path may be different: Settings โ Display โ Wireless monitor. If you donโt have an option, check the firmware update (the minimum version for Miracast is MIUI 10).
Make sure both devices are connected to the same Wi-Fi network (for AirPlay)
Turn off VPN and energy saving modes
Close the background applications (especially messengers)
Check that the screen is on "Screen Mirroring"-->
โ ๏ธ Note: On smartphones with HyperOS (such as Xiaomi 14), the wireless display feature may conflict with Game Turbo.
3. Optimization of broadcast quality: resolution, FPS and bitrate
By default, Xiaomi limits the broadcast resolution to 1080p@30Hz to reduce the load on the processor and battery. However, on flagship models (for example, Xiaomi 13 Pro) you can manually increase the parameters:
- ๐ฎ For games: Choose 720p@60 Hz - this will reduce the delay to ~40 MS (against) 80 pr 1080p).
- ๐ฌ For the movies: Optimal 1080p@24 Hz (meets the movie standard) with included HDR (if maintained).
- ๐ For presentations: Enough 1080p@30 Hz โ the clarity of the text will be acceptable.
To change the settings:
- Connect to the wireless display.
- Slap on the broadcast notification in the curtain.
- Select Settings โ Image quality.
- Set the required resolution and frame rate.
Critical detail: On the Redmi Note 11 and older, when selecting 4K, the broadcast automatically drops to 30Hz, even if you specify 60Hz - this is the limitation of the Snapdragon 680 chipset.
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If the image โbreaksโ during the broadcast, try to reduce the bitrate manually: in the developer settings (Settings โ About Phone โ MIUI version โ tap 7 times) turn on the option to Limit Miracast bitrate and set the value of 10 Mbit / s.
4. Common Problems and Their Solutions
Even on top-end Xiaomi devices, users are faced with typical wireless broadcast errors, and here are the most common ones and fixes:
| Problem. | Reason. | Decision |
|---|---|---|
| Devices can't see each other. | Wi-Fi Channel Conflict | Switch the router to channel 6 or 11 (2.4 GHz) |
| Sound delay ~1 s | Unsynchronized audio codecs | In the TV settings, select PCM instead of Dolby. |
| Black screen when connected | DRM Limitations (Netflix, Disney+) | Use Google Cast instead of Miracast |
| Broadcast cuts off | Weak Wi-Fi signal | Reduce the distance to 3 meters or use 5 GHz |
If the problem persists, try resetting the network settings on your smartphone: Settings โ SIM-maps and mobile networks โ Reset network settings. on Xiaomi TV Similar option is in the settings โ Network โ Additionally. โ Resetting the network.
โ ๏ธ Note: When broadcasting content from DRM-Protection (e.g., Kion or Okko movies) through Miracast may cause artifacts or completely shut down the sound. In this case, use Google Cast (built into streaming apps).
Comparison with wired solutions: pros and cons
Wireless streaming is convenient, but inferior to wired connections (such as USB-C to HDMI) in key parameters.
- โก Delay: Wire โ 5-10 ms, Miracast โ 30โ80 ms, AirPlay โ 20โ50 ms.
- ๐จ Quality: The wire supports 4K@120 Hz. HDR10+, wireless protocols โ maximum 4K@60 Hz (more often) 30 Hz).
- ๐ Power consumption: Wireless transmission drains the battery by 15-20% per hour (versus 5% for wired connection).
- ๐ Universality: Wire requires adapters, wireless display works out of the box with any compatible TV.
For gamers and professional work (video editing, graphic design), wired connectivity remains a priority, but for everyday tasks โ watching movies, presentations or streams โ Miracast on Xiaomi does a great job.
How to check for real broadcast delay?
6. Alternative ways to stream the screen on Xiaomi
If the built-in Miracast is not satisfied with quality or stability, consider alternatives:
- ๐ฑ Google Cast: Built into YouTube, Netflix and other apps. Runs through a router, supports 4K HDR. The downside is that it doesnโt duplicate the entire screen, only content from supported apps.
- ๐ฅ๏ธ TeamViewer QuickSupport: Allows you to remotely control your smartphone from a PC or other device, suitable for technical support, but not for multimedia (latency) ~300 ms).
- ๐ ApowerMirror: Third-party app with support 1080p@60 Hz and screen recording. Requires the server part to be installed on a PC or TV.
- ๐ฎ Steam Link: Optimized for streaming PC games to your smartphone or TV. ~20 ms on the local network.
Xiaomi TV owners have an exclusive feature called MIUI+, which allows you to not only broadcast the screen, but also control the smartphone from the TV remote, as well as synchronize the clipboard.
- On your smartphone: Settings โ Connection and Sharing โ MIUI+.
- On TV: Settings โ Accounts and Security โ MIUI+
- Scan the TV scanner. QR-smartphone-code.
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MIUI+ only works between Xiaomi devices and requires a Mi Account. the feature is not available on smartphones with firmware from third-party developers (for example, Pixel Experience).
7.Security of wireless broadcasting: what you need to know
Airborne screen transmission carries the risk of interception or unauthorized connection.
- ๐ Turn off automatic connection: In Miracast settings, deactivate the option of Autoconnect to known devices.
- ๐ก๏ธ Use it. WPA3: If the broadcast is via the router, make sure the network is secure. WPA3-Personal (setting up in the admin panel of the router).
- ๐๏ธ Check Connected Devices: On Xiaomi TV The list of active connections can be seen in Settings โ Wireless networks โ Miracast devices.
- ๐ Update firmware: Vulnerabilities in Miracast (e.g, CVE-2021-0322) Closed in monthly security patches.
On Xiaomi corporate devices (e.g., Xiaomi Mi 11 Lite NE with Android Enterprise), the administrator can completely block Miracast through DevicePolicyManager policies. To check the restrictions, enter the command in the engineering menu:
adb shell dumpsys device_policyโ ๏ธ Note: When connecting to public displays (such as hotels or airports), never share sensitive information โ Miracast traffic on open networks can be intercepted using Wireshark or specialized utilities like Miracast Sniffer.