The situation when the smartphone Honor The problem of refusing to display an image on a large screen is familiar to many users trying to stream videos or presentations. Often, the problem lies not in hardware failure, but in simple network protocol desynchronization or outdated drivers. MiracastUnderstanding the physical nature of a wireless connection helps you quickly find the root cause of a problem, whether it's a router setting or a software glitch.
Modern devices Huawei And Honor They use their own power-saving algorithms, which can aggressively throttle background processes necessary to maintain a stable media stream. If your phone isn't connecting to the TV via Wi-Fi, first check whether Airplane Mode or Data Saver Mode is enabled, blocking local connections. Without a stable handshake between devices, screen projection is impossible.
It is important to note that broadcasting technologies are divided into two main types: streaming media (DLNA) and screen mirroring (MiracastErrors often occur when attempting to start mirroring, as it requires higher bandwidth and lower latency. In this article, we'll cover all possible causes of failures and troubleshooting methods.
Checking network infrastructure and frequency ranges
The most common reason why an Honor TV isn't detecting or disconnecting is that the devices are operating on different Wi-Fi frequency bands. Modern routers often broadcast two networks: 2.4 GHz And 5 GHzFor high-quality transmission of high-definition video (Full HD or 4K), it is critical that both the smartphone and Smart TV are on the same network, preferably on the same frequency. 5 GHz.
The 2.4 GHz band is heavily congested with signals from neighboring routers, microwave ovens, and Bluetooth headsets, which causes interference and packet loss. If your Honor connected to 5 GHz, and the TV is stuck on 2.4 GHz, protocol DLNA It may work, but Miracast will constantly freeze or not launch at all. Make sure the network names (SSIDs) match, or force one of the devices to switch.
It's also worth paying attention to the client isolation settings within the router. Some providers or network administrators enable this feature. AP Isolation, which prevents devices within the same Wi-Fi network from communicating with each other. This is a standard security measure in public places, but at home, it completely blocks your phone from connecting to your TV.
⚠️ Attention: If you're using a guest Wi-Fi network, it almost always has client isolation built in. To connect your Honor to your TV, be sure to switch to your main home network.
To diagnose signal quality, you can use special analyzer applications available in the store. AppGallery or Google PlayThey will show the noise level and channel load, which will help you understand whether it's worth manually changing the router's broadcast channel.
How to check what network a device is on?
Go to your phone's Wi-Fi settings and tap the name of the connected network. The connection properties will show the frequency range (2.4 or 5 GHz). On your TV, this information is usually found under "About TV" or "Network Status."
Screen projection settings on Honor and Huawei
In the shell Magic UI And EMUI The wireless projection function is implemented through a standard protocol MiracastTo start the process, pull down the notification shade and look for the "Projection" (or "Wireless Projection") icon. If the icon isn't there, you can add it through the quick settings menu.
Once the feature is activated, the phone begins scanning for available receivers. If your TV doesn't appear in the list, try pressing the "Search" or "Refresh" button on your smartphone screen. Sometimes it takes a few seconds for the system to detect a TV. DLNA-server or Miracast receiver.
An important detail is the discovery permission. In some firmware versions, the system requests permission to use geolocation or local network when the projection is first launched. Without these permissions, Honor will not be able to find the TV on the local network.
There's also a hidden setting in the developer options menu that can affect wireless display functionality. Here's how to access it: Settings → System & updates → For developersHere you can find an option to force wireless display support on or off, but for most users, the default settings are sufficient.
Smart TV and protocol compatibility issues
Not all TVs understand commands from smartphones equally well. HonorOlder Smart TV models may only support the protocol DLNA, which is designed for file transfers, but doesn't support real-time screen mirroring. In this case, you'll be able to mirror photos and videos from your gallery, but you won't be able to display your desktop.
Modern televisions use various operating systems: Android TV, Tizen (Samsung), WebOS (LG). Each of them has its own implementation features of the Miracast protocol. For example, on Samsung, the function may be called Smart View, and on LG - Screen ShareMake sure the appropriate receiver app is running on your TV.
| Brand TV | Function name | Protocol | Nuances |
|---|---|---|---|
| Samsung | Smart View / Broadcast | Miracast / DLNA | Requires confirmation on the remote control |
| LG | Screen Share | Miracast | You need to launch the app on TV |
| Sony | Screen mirroring | Miracast | Often requires enabling in network settings |
| Xiaomi | Broadcast | Miracast / Chromecast | Good compatibility with Android |
If your TV is too old and does not have built-in Miracast support, purchasing an external set-top box, for example, will help solve the problem. Chromecast or Android BoxThese devices take over the signal reception function and transmit it to the TV's HDMI port, bypassing firmware limitations.
⚠️ Attention: TV interfaces and feature names may change after firmware updates. Always check the manual for your specific TV model for the latest names.
☑️ Compatibility check
Impact of energy saving and background processes
Aggressive battery optimization is the bane of modern smartphones. HonorThe system may forcefully close the Projection process or limit Wi-Fi functionality if the phone's screen goes dark or the app goes into the background. This causes the connection to be lost after a few minutes.
To avoid this, you need to add the Projection application (or the wireless projection system process) to the exceptions list. Go to Settings → Battery → Launch appsFind the system services related to the display or Wi-Fi Direct in the list and allow them to run in the background by disabling automatic management.
It's also worth checking your Wi-Fi settings. In some cases, resetting network settings can help, as it clears the DNS cache and old configurations that could conflict with the new hardware. Here's how to reset: Settings → System & updates → Reset → Reset network settings.
Don't forget that it's on VPN A VPN or proxy server on your phone may redirect projection traffic through a remote server, making a local connection impossible. Be sure to disable any VPN services before attempting to connect.
Why does VPN interfere with the connection?
A VPN creates a virtual tunnel for internet traffic. Local area network (LAN) protocols, such as DLNA and Miracast, operate within your home network and shouldn't go online. A VPN blocks these local requests, either because it considers them suspicious or because it simply doesn't know where to route them.
Using third-party apps for broadcasting
If the standard means Honor can't cope, third-party solutions come to the rescue. Application Google Home is the official tool for working with the Chromecast protocol, which is built into many modern TVs. It allows you to mirror your phone's screen even to TVs that don't support Miracast well.
For TVs without Smart TV or with poor protocol implementation, there are receiver apps that install directly on the TV (if it's on Android TV) or on a connected set-top box. Popular options include: AirScreen, Receiver for MiracastThey create a virtual display that the phone sees as a standard output device.
Another powerful tool is the app Web Video CasterIt's perfect for watching videos from your browser. You open a video on a website in your phone's browser, select "Cast," and the stream is sent directly to your TV, bypassing your smartphone's screen. This reduces the load on your phone's battery and processor.
The secret to stability through third-party applications
If built-in projection is glitchy, the AirScreen app on Android TV often works more reliably, as it uses more modern codecs and is better adapted to different Android versions.
When using third-party software, it's important to monitor permissions. The app requires access to the local network and, in some cases, the microphone (for voice control) to function correctly. Without these permissions, device detection may fail.
Diagnostics via the developer menu and reset
For advanced users who want to get to the bottom of things, there's a developer menu. To activate it, quickly press 7 times. Build number in the section About the phoneAfter this, a new item will appear in the settings menu.
In the section For developers You can find options related to interface scaling or Wi-Fi debugging. However, the most useful function here may be resetting Bluetooth and Wi-Fi settings, as well as viewing logs (if available), where you can see the cause of the connection failure (handshake error, timeout, etc.).
If all else fails, a radical but effective method is to completely reset your phone's network settings. This won't delete your personal photos or contacts, but it will reset your Wi-Fi, Bluetooth, and mobile network settings to factory defaults. You'll then have to re-enter your Wi-Fi passwords for all your networks.
⚠️ Attention: Before performing a full reset (Hard Reset), make sure you remember the passwords for important accounts and Wi-Fi networks, as it will be impossible to restore them from the phone's memory after the reset.
Frequently Asked Questions (FAQ)
Why does my Honor phone see the TV, but it says "Connection error"?
This most often occurs due to mismatched security passwords or a blocking issue with the router's antivirus software. It's also possible that the TV's clipboard is full or stuck in standby mode. Try restarting both devices.
Is it possible to connect Honor to TV via USB cable?
Direct USB connection for display output (like HDMI) is not supported by all Honor models. It only works if the phone supports MHL or DisplayPort over USB-C technology. Otherwise, USB is used only for file transfer (mass storage mode).
The picture is lagging during broadcasting, what should I do?
Lag occurs due to low Wi-Fi speed or interference. Move closer to the router, disable downloads on other devices, or switch to a 5 GHz network. Reducing the streaming video quality in the app settings can also reduce the load.
Does the projection work without the internet?
Yes, Miracast and Wi-Fi Direct work locally between devices. Internet access (global network access) is not required; the only requirement is that the Wi-Fi modules on your phone and TV (or router) are turned on and visible to each other.