Miracast for Android: what kind of technology it is and how to use it

Have you ever wanted to display the screen of your Androidsmartphone on a large TV wirelessly, but didn’t know how do? Or tried to connect to a projector at work, but encountered a “device not supported” error? Most likely, you lacked knowledge about technology Miracast —a wireless screen broadcast standard that is built into most modern Androiddevices, but often goes unnoticed.

In this article we will look at what Miracastis, how it differs from Google Cast (for example, Chromecast), which Androidsmartphones and TVs support it, and how to set up a connection without lags. You will also learn about common problems (for example, why the picture is slow or the sound disappears) and how to solve them. If you often use Screen Mirroring or Smart View, but do not understand how it works "under the hood" - this instruction is for you.

What is Miracast and how does it work

Miracast is a standard for wireless transmission of video and audio from one device to another without intermediaries (as opposed to Chromecast, where the stream is via the Internet). The technology was developed by the consortium Wi-Fi Alliance in 2012 and is based on the protocol Wi-Fi Direct. This means that:

• 🔄 Direct connection: the smartphone and TV (or projector) communicate directly, without a router.
• 🎮 Minimum delays: suitable for games and videos, since the lag usually does not exceed 50–100 ms.
• 🔒 Without the Internet: works even in offline mode (for example, on an airplane or in the country).
• 📱➡️📺 Two-way broadcast: you can not only show the phone screen on TV, but also control it from the remote control (if the device supports it Miracast Input).

It is important to understand that Miracast is not a brand (like AirPlay from Apple), but an open standard. Therefore, it works on devices from different manufacturers: Samsung (function Smart View), Xiaomi (Wireless Display), Google Pixel (Cast), Sony, LG and others. However, implementations may differ - for example, on some TVs Samsung older than 2018 Miracast works only with branded smartphones.

Technically Miracast uses video compression H.264 (or H.265 on new devices) and transmits data through the channel Wi-Fi 5 GHz (less often - 2.4 GHz). This provides a stable signal, but may conflict with other wireless devices in the room. For example, if a microwave or wireless headphones are operating nearby on the same frequency, the connection may be interrupted.

Differences between Miracast and Google Cast, AirPlay and DLNA

Many are confused Miracast with other broadcast technologies, but each standard has its own characteristics. Here are the key differences:

Technology	Manufacturer	Requires Internet?	Latency	Supported devices
Miracast	Wi-Fi Alliance	❌ No	50–100 ms	Android, Windows, some TV
Google Cast (Chromecast)	Google	✅ Yes (Wi-Fi)	200–500 ms	Android, iOS, Chrome, TV with Chromecast
AirPlay	Apple	✅ Yes (Wi-Fi)	100–300 ms	iPhone, iPad, Mac, Apple TV
DLNA	Digital Living Network Alliance	✅ Yes (local network)	1–3 sec	TV, media players, PC

Critical nuance: Miracast is the only standard that does not require an Internet connection and works directly between devices. This makes it indispensable in places without Wi-Fi (for example, in conference rooms or at outdoor events). However, it also has disadvantages:

• 🔋 Fast battery drain: screen casting loads the processor and Wi-Fi module of the smartphone.
• 📶 Limited range: stable connection only in radius of 5–10 meters.
• 🎮 Not all games supported: some applications (for example, PUBG Mobile or Genshin Impact) block the broadcast due to protection against cheating.

Which Android devices support Miracast

Theoretically Miracast should work on all smartphones s Android 4.2 and newer, but in practice it all depends on the manufacturer and model. Here are the main compatibility criteria:

• 📱 Android 4.2–13: support is built into the system, but on older versions (up to Android 9) there may be bugs.
• 🔧 Chipset: support required Wi-Fi Direct (almost all modern processors, except some budget models).
• 📺 TV/projector: must have built-in Miracast-receiver or support Screen Mirroring.

Below is the compatibility table of popular brands:

Brand	Function name	Minimum version of Android	Notes
Samsung	Smart View	4.2	On models before 2018, it may not work with other people's TVs.
Xiaomi	Wireless Display	6.0	On Redmi sometimes you need to enable it in the developer settings.
Google Pixel	Cast	8.0	Supports both Miracastand Google Cast.
OnePlus	Screen Mirroring	9.0	On some models, you need to manually select the protocol.

To check if your smartphone supports Miracast, follow these steps:

1. Open Settings → Connections → Advanced (names may vary).
2. Find items Screen Mirroring, Smart View, Wireless Display or Miracast.
3. If the function is available - your device is compatible.

If a function is not in the menu, this does not always mean lack of support. On some devices (for example, it is hidden in the developer settings. To enable it: Go to Settings → About phone → MIUI version Xiaomi or Realme) Miracast hidden in developer options. To enable it:

1. Go to Settings → About phone → MIUI version (or Build number).
2. Press 7 times to activate developer mode.
3. Go back to Settings → Advanced → For developers.
4. Find the option Wireless Display Certification and enable her.

What to do if Miracast does not work on custom firmware?

On unofficial firmware (for example, LineageOS), Miracast support may be disabled due to the lack of Wi-Fi Alliance certificates. In this case, only flashing to the official version or firmware with Wi-Fi Direct support will help.

How to connect Android to a TV via Miracast: step-by-step guide

Setup Miracast usually takes no more than a minute, but there are nuances that affect the stability of the connection. Follow these instructions:

1. Enable Miracast on your TV:
   • On the remote control, press the button Source or Input.
   • Select Screen Mirroring, Miracast or Wireless Display (names vary).
   • On some TVs (for example, LGyou need to go to Settings → Network → Miracast.
2. Activate broadcast on smartphone:
   • Open Settings → Connections → Screen Mirroring (or a similar item).
   • In the list of available devices, select your TV.
   • Confirm the connection on both devices.

If the connection is not established:

• ⚠️ Make sure that both devices are on the same network (if used Wi-Fi Direct via a router).
• ⚠️ Restart your smartphone and TV - this resets the network cache settings.
• ⚠️ Disable VPN or proxy on your phone - they can block the local connection.

On some TVs (for example, Sony Bravia), you need to manually enable the reception mode before connecting:

Settings → Network → Home network → Enable Miracast

If you are using a projector or media player (for example Xiaomi Mi Box), the process is similar, but the name of the function may differ (Wireless Projection, AirScreen etc.).

Typical problems with Miracast and how to solve them

Even if your devices support Miracastthe connection may be unstable. Here are the most common problems and ways to fix them:

1. The TV does not find the smartphone (or vice versa)

• 🔄 Restart both devices —this resets the network settings.
• 📶 Check the Wi-Fi frequency: some TVs only work on 5 GHz, and the smartphone can be connected to 2.4 GHz.
• 🔒 Disable the firewall on your phone (for example, Avast or Kasperskyas it may be blocking Wi-Fi Direct.

2. The image slows down or breaks

• 🎮 Reduce screen resolution in the broadcast settings (if there is such an option).
• 📡 Remove sources of interference: microwaves, other Wi-Fi devices, Bluetooth speakers.
• 🔋 Connect the smartphone to charger — when the battery charge is low, the processor reduces performance.

3. There is no sound during broadcasting

• 🔊 Check the volume on your TV - sometimes it resets when connected.
• 🎧 Turn off Bluetooth headphones on your smartphone - the sound may go to them.
• 🔧 Reset the sound settings in the menu Settings → Sound → Advanced.

On some TVs Samsung i LG sound may not be transmitted due to manufacturer restrictions. In this case, it will help:

• Use an external Miracast adapter (for example, Microsoft Wireless Display Adapter).
• Connecting audio separately via Bluetooth or 3.5 mm jack.

⚠️ Attention: On TVs Samsung older than 2019, a firmware update may be required for correct operation. Tizen older than 2019 may require a firmware update for correct operation Miracast s Android 12+Check the software is up to date in the menu. data-i="232">Attention: Support → Software update.

Miracast vs. alternatives: what to choose in 2026

Although Miracast remains one of the most universal standards, it has competitors. That's when. it is worth choosing an alternative:

Scenario	Recommended technology	Reason
Broadcast Netflix/YouTube on TV	Google Cast (Chromecast)	Best optimization for streaming services.
Games with low lag	Miracast or wired connection	Minimum latency (50–100 ms).
Showing presentations in the office	Miracast or AirPlay (for Mac)	Does not require internet, works with most projectors.
Viewing photos/videos from your phone	DLNA or USB-C → HDMI	More stable transmission without compression.

If you need maximum image quality (for example, for watching movies in 4K HDR), Miracast is not always suitable due to compression H.264. In this case, it is better to use:

• 📊 Wired connection via USB-C → HDMI (adapter required).
• 📶 Google Cast Ultra (supports 4K, but requires stable Wi-Fi).

For gamers Miracast remains one of the best options due to its low latency. However, some games (for example Call of Duty Mobile or Fortnite) block the screen broadcast due to anti-cheats. In this case, it will help:

• 🎮Usage Steam Link or Moonlight for streaming games from a PC.
• 🖥️ Connecting a smartphone to TV via USB-OTG + mouse/keyboard.

Miracast security: risks and how to avoid them

Since Miracast transmits data over Wi-Fi Directit is vulnerable to some attacks, especially in public places Here are the main risks:

• 👀 Traffic interception: if an attacker is within range, he can see. broadcast content (for example, passwords or personal photos).
• 🔄 Device spoofing: on some TVs you can connect to someone else's smartphone if it is in search mode.
• 📡 Attacks on Wi-Fi: vulnerabilities in the protocol WPA2 (used in Wi-Fi Direct) allow you to hack the connection.

To protect yourself:

• 🔒 Turn off Miracast after use —do not leave your smartphone in search mode.
• 🛡️ Use VPN on your smartphone (for example, ProtonVPN), if you are broadcasting confidential data.
• 🏠 Set up your home network: in an office or hotel, use Miracast only through a protected Wi-Fi s WPA3.

⚠️ Attention: On some TVs LG and Sony in the settings Miracast you can enable a PIN code request when connecting. This prevents unauthorized access. Look for the option Security Mode or Pairing Code.

If you often use Miracast in public places (for example, in hotels or co-working spaces), consider alternatives:

• 🔐 Wired adapter (HDMI or USB-C) - more reliable and secure.
• 🌐 Google Cast via guest Wi-Fi - traffic goes through the cloud Google, which is more difficult to intercept.

FAQ: Frequently asked questions about Miracast on Android

My smartphone does not see the TV via Miracast. What to do?

Try the following:

1. Make sure the mode is turned on on the TV Screen Mirroring.
2. Reboot both devices.
3. Check if an antivirus or firewall is blocking the connection.
4. If used Wi-Fi Direct via a router, make sure that both devices are connected to the same network.

If all else fails, update the firmware of your TV or smartphone.

Can I cast the screen to a laptop via Miracast?

Yes, but the laptop must support reception Miracast. On Windows 10/11 this is done like this:

1. Click Win + K and select Connect to a wireless display.
2. Activate on your smartphone Screen Mirroring and select a laptop from the list.

On Mac Miracast not supported - use AirPlay or third-party apps (for example, ApowerMirror).

Why does video slow down when broadcasting via Miracast?

The reasons may be:

• Weak signal Wi-Fi (interference, long distance).
• The smartphone overheats and reduces performance.
• High screen resolution (try reducing it in the settings broadcasts).
• Background processes load the processor (close unnecessary applications).

Also check if the TV has an image processing mode (for example, Motion Smoothing), which can add lag.

Is it possible to use Miracast to mirror the screen on two TVs simultaneously?

No, Miracast supports connection to only one device at a time. If you need to broadcast to multiple screens, use:

• Wired splitters (HDMI).
• Streaming services (for example, YouTube with simultaneous broadcast to several Chromecast).
• Specialized software (for example, OBS Studio for broadcasting to several devices over the network).

Does Miracast work on Android 14?

Yes, Miracast is supported on Android 14, but there are nuances:

• On some smartphones (for example, Google Pixel 8) the function is hidden in Settings → Connected devices → Connection to a device.
• Manufacturers may limit broadcasting for some applications (for example, banking or DRM-protected).
• For 4Kbroadcasting may require Wi-Fi 6.

If Miracast does not work after updating to Android 14, try resetting the network settings (Settings → System → Reset → Reset Wi-Fi, mobile network and Bluetooth).