Modern multimedia systems demand flexibility, and wireless data transmission technology has become the de facto standard for home entertainment. TV owners DEXP often face the need to stream content from mobile devices to a large screen without using unnecessary wires. Function Wi-Fi Direct Allows you to create a direct connection between your gadget and TV, bypassing the router, which significantly speeds up the process of transferring video or photos.
However, despite the simplicity of the concept, the implementation of this function in different firmware versions may differ. Users often get confused Wi-Fi Direct with a regular home network connection or function MiracastUnderstanding the differences between these technologies is critical to successful setup, as the activation methods and security protocols operate differently.
In this guide, we will go through in detail the steps to activate a wireless connection on devices. DEXPYou'll learn how to find hidden settings in the menu, which security options to select, and what to do if your TV doesn't detect your smartphone. We'll cover both standard usage scenarios and specific cases that require manual configuration.
Differences between Wi-Fi Direct and Miracast and DLNA
Before moving on to the settings, it is necessary to clearly distinguish between technologies, since in the TV menu DEXP They may be called differently or be combined into one section. Wi-Fi Direct — is a protocol that allows devices to connect directly to each other without an access point. While DLNA Requires a router and a shared network, Direct creates its own local network between two devices.
On the other side, Miracast (often called "Wireless Monitor" or "Broadcast") uses Wi-Fi Direct technology to transmit a real-time video stream. If your goal is simply to display your smartphone's screen on a TV, you'll likely need Miracast, which is based on the Direct protocol. However, for transferring large, uncompressed files, it's better to use pure Wi-Fi. Wi-Fi Direct.
Technical Reference
What's the difference in speed?: The DLNA protocol is limited by your router's speed and network load. Wi-Fi Direct operates on a direct channel, which often provides more stable transfer speeds for large files, but can be disruptive over long distances. Miracast, on the other hand, is optimized for low-latency video streaming, sacrificing quality for smoothness.
It is important to understand that DEXP TVs based on Android TV use Google Cast system services, which may conflict with native Wi-Fi Direct implementations from chipset manufacturers.Therefore, in some models the function may be hidden or renamed to "Wireless connection".
- 📡 Wi-Fi Direct: Direct device-to-device connection, ideal for file transfer and printing.
- 🖥️ Miracast: Screen mirroring technology using Direct as transport.
- 🏠 DLNA: Works only through a home router, requires setting up a shared network.
Equipment preparation and compatibility testing
Before you begin setup, please ensure your equipment is technically ready for operation. Not all models DEXP Support this feature at the hardware level, especially budget series with limited Wi-Fi modules. Check the specifications of your model on the official website or in the manual, looking for abbreviations. 802.11n or 802.11ac.
It's also critical to update your TV's software. Manufacturers often add support for new protocols or fix bugs in wireless modules through firmware updates. If your DEXP hasn't been updated for a long time, the probability of a successful connection is reduced.
☑️ Check before setup
Please pay attention to your smartphone's operating system version. On Android devices, this feature may have different names depending on the manufacturer's operating system (MIUI, OneUI, ColorOS). iPhones don't natively support Wi-Fi Direct for file transfers; they use a protocol called AirPlay, which can also work through the TV network.
Step-by-step instructions: activation in the TV menu
The process of enabling the feature may vary depending on the operating system version. Android TV, installed on your DEXPIn most cases, the algorithm is the same. You need to enter the main menu and find the system or network settings section.
Go to the section Settings, then select the item Network and Internet. Here you are interested in a subsection that may be called Wi-Fi Direct, Wireless connection or Screen MirroringIn some firmware versions DEXP This option has been moved to a separate menu. Applications -> Wireless Display.
⚠️ Attention: In some software versions, this option may be hidden if the Wi-Fi module is disabled. Make sure your primary Wi-Fi adapter is enabled, even if you're not connected to the router.
After selecting the appropriate item, the TV will go into connection standby mode. The device name will appear on the screen (e.g. DEXP-TV-4K) and the "Waiting for connection" status. Do not exit this menu until you complete the setup on your smartphone.
Setting up a connection from a smartphone
Now let's move on to the mobile device. On Android smartphones, the path to settings may vary. Usually, it's enough to pull down the notification shade and find the button. Wi-Fi Direct, Broadcast, Smart View (Samsung) or Wireless projector (Xiaomi).
Click this button, and your phone will begin searching for available devices. Your TV should appear in the list. DEXPClick on it. A confirmation prompt may appear on the TV screen, either with or without a code. Confirm the action with the remote.
If automatic connection does not occur, try the manual method through Wi-Fi settings:
- Open Wi-Fi settings on your smartphone.
- Click on the additional settings menu (three dots or gear).
- Select Wi-Fi Direct.
- Wait for it to appear DEXP in the list and click to pair.
Once paired successfully, a connection icon will appear in your phone's status bar. You can now open your gallery or video player and select the "Cast" button, choosing your TV as the recipient.
Solving common connection problems
Even with the correct settings, users may encounter errors. One of the most common problems is with the TV. DEXP isn't visible in the list of available devices. This is often due to the devices being on different frequencies. Make sure both devices support the standard. 2.4 GHz or 5 GHz, although Direct should work regardless of this.
Another cause is antivirus software or a firewall on your smartphone, which can block incoming connections from unknown devices. Try temporarily disabling the protection or adding the TV to the trusted list.
| Problem | Possible cause | Solution |
|---|---|---|
| TV not found | Wi-Fi Direct service is disabled | Enable in TV network settings |
| Connection lost during broadcast | Weak signal or interference | Come closer, remove obstacles |
| There is no sound on the TV | Invalid connection profile | Select "Media" instead of "Photo" |
| Password request | WPA2 security enabled | Enter the PIN code from the TV screen |
⚠️ Attention: If a PIN is requested upon connection, it will be displayed on the TV screen. Enter it carefully, as the security timer limits the time you can enter it.
Using third-party apps for broadcasting
If the standard means DEXP If your smartphone and your device don't work together, third-party apps can help. They often offer more flexible codec settings and work better with unstable connections. Popular solutions include Web Video Caster, LocalCast or TV Cast.
Install the selected application on your smartphone and, if necessary, its analogue on your TV through the store Google Play on Android TV. Most of these programs work by emulating DLNA or Miracast, using the same channel. Wi-Fi Direct or local network.
The advantage of third-party software is the ability to stream video formats that are not supported by the TV's built-in player, for example, MKV with certain subtitles or audio codecs DTSThe application will take care of transcoding the stream on the fly.
Optimizing wireless transmission quality
To get the best picture and no input lag when playing games or watching 4K videos, it is important to minimize interference. Technology Wi-Fi Direct sensitive to interference from microwave ovens, Bluetooth headsets and neighboring routers.
If possible, use the 5GHz band if your DEXP And smartphones support it. It's less congested and provides higher bandwidth, which is critical for HDR content. However, its range is shorter.
It's also worth closing background apps on your smartphone that may be consuming bandwidth or CPU resources. This will free up bandwidth for transmitting the video stream to the TV, ensuring a smooth, tear-free picture.
Why does the broadcast lag even with a strong signal?
Delays are often caused not by signal strength, but by channel congestion or codec incompatibility. Try lowering the output quality in the streaming settings or using a cable connection for larger files.
Can I play games on my TV using Wi-Fi Direct?
Technically, it's possible, but input lag over wireless protocols like Miracast/Direct typically ranges from 50 to 150 ms. This is critical for fast-paced shooters or fighting games, but perfectly acceptable for turn-based strategy games.
Is it safe to leave Wi-Fi Direct on all the time?
Activating this feature permanently makes your TV visible to all devices within range. Although connection requires confirmation, it's best to only enable this feature while in use to prevent unauthorized connection attempts.
Does Wi-Fi Direct work without internet?
Yes, this is a key feature of the technology. The connection is established directly between devices, so internet access is not required. You can stream photos and videos from your phone's memory even when the router is turned off.