Situations where you urgently need to display photos or a movie from your smartphone on a big screen arise frequently, but access to your home network may be temporarily limited. Perhaps your router is broken, your provider is performing maintenance, or you're in a location where there's simply no Wi-Fi network. Owners of modern technology LG Smart TV People often encounter the myth that without an internet connection, their TV becomes useless. This is not true.
The engineers have provided several hardware and software methods To create a local connection between devices. You don't need a global network to transfer files via a cable or direct wireless connection. In this article, we'll cover all the methods that work, from classic wired connections to advanced wireless protocols that operate independently.
Some methods will require minimal setup beforehand while the internet is still available, while others work out of the box. It is critical to understand that Miracast (Screen Share) technology creates a direct Wi-Fi connection between your phone and TV without the need for a router. Let's take a closer look at each option so you can choose the one that best suits your gadget model and the availability of accessories.
⚠️ Attention: Menu interface webOS This may vary depending on the operating system version of your LG TV. The location of the options may change after a firmware update, so be sure to follow the instructions, not just the names.
Using an HDMI cable with an adapter
The most reliable and high-quality way to transfer images is a physical connection. If you can purchase or find the appropriate adapter, you'll get high-resolution images without lag or compression. For modern smartphones, you'll need an adapter with USB-C to HDMI (or Lightning to HDMI for older iPhones). This method completely ignores the presence or absence of any wireless networks.
Simply plug one end of the cable into your phone's charging port and the HDMI cable into your TV. LGAfter this, you need to switch the signal source to TV. Use the remote control and press the button Input or Sourceto select the appropriate port, for example, HDMI 1 or HDMI 2The image should appear instantly.
It is worth noting that not all phones support video output via USB. MHL technology or Slimport Your mobile device should have this feature built into it. Flagship models typically have this feature, while budget models may limit data transfer to charging and file syncing. Check your device's specifications on the manufacturer's official website.
Broadcast via Screen Share (Miracast)
Technology Miracast, which LG calls Screen Share, allows you to create a direct wireless connection between your phone and TV. This is the so-called Wi-Fi DirectDevices communicate directly with each other, bypassing the router. This method doesn't require internet access at all; only a working Wi-Fi module in both devices.
To start streaming, take your TV remote and go to the app launcher. Find the icon Screen Share or ScreencastingOn some models webOS This application can be called Device ConnectorOnce launched, a message will appear on the screen indicating that you're waiting for a connection. Now you need to take action on your smartphone.
Depending on your phone model, the feature may have a different name. On Samsung, it's Smart View, on Xiaomi — Broadcast, on other Androids - Cast or Wireless monitorIn the phone menu, select your TV from the list of available devices. If a connection confirmation appears on the TV screen, confirm the connection using the remote.
- 📱 Make sure your smartphone's Wi-Fi is turned on, even if there is no internet connection.
- 📺 On your LG TV, the Screen Share feature must be active in the apps menu.
- 🔋 Keep an eye on your battery life, as wireless video transmission drains power quickly.
If the connection fails, try restarting your phone's Wi-Fi module. Sometimes turning Airplane mode off and on for a few seconds helps. Also, check if your phone has background data restrictions or power saving settings that are blocking device discovery.
☑️ Check Screen Share Readiness
Transferring files via USB drive
If wireless methods seem too complicated or unstable, the good old USB flash drive remains the king of compatibility. This method requires the video file to first be saved to the phone's memory and then transferred to the drive. You'll need an adapter. OTG (On-The-Go), which allows you to connect a regular flash drive to the charging port of your smartphone.
Connect the flash drive to your phone via an OTG adapter. Using a file manager, copy the desired video to the drive's internal memory. Once the copying is complete, remove the flash drive and insert it into the TV's USB port. LGPorts are usually located on the back or side panel of the case.
A pop-up window may appear on your TV screen prompting you to open the contents of the USB device. If this does not happen, press the button Input on the remote control and select USB or launch the application Photos and Videos (or Media Player). System webOS automatically recognizes video formats and prompts you to select a file to play.
Supported formats: .mp4, .mkv, .avi, .mov, wmvIt is worth considering that some TVs may not see flash drives formatted in the file system NTFS, if they contain files larger than 4 GB, although modern LG models usually handle NTFS without problems. If the TV says "Unsupported format," try formatting the drive in FAT32 on your computer, but be aware of the file size limit.
What to do if the TV doesn’t recognize the flash drive?
Try using a USB port with a lower number (e.g., USB 1 instead of USB 2). Some ports are only for servicing or power. Also, check whether the flash drive requires additional power, although this is rare for regular drives.
Setting up a DLNA home network without the Internet
Many users do not know that for the protocol to work DLNA (Digital Living Network Alliance) doesn't necessarily require access to the global network. It's enough for your phone and TV to be on the same local network. You can create such a network by enabling Hotspot mode on your smartphone.
Enable tethering or Wi-Fi hotspot mode on your phone. Go to the Wi-Fi settings on your LG TV and connect to the smartphone's network you created. You can find the password in the hotspot settings on your phone. Now both devices are connected to the same network, even without internet access.
Launch the app on your TV Photos and Videos or Smart ShareSelect your mobile device from the source list. If your phone has a media server installed (such as BubbleUPnP or the built-in "Media Casting" feature in the Gallery), the TV will see available files. Open the video folder and start playback.
| Parameter | Requirement | Note |
|---|---|---|
| Protocol | DLNA / UPnP | Multimedia transmission standard |
| Net | Local (Hotspot) | Internet is not required |
| Formats | MP4, MKV, AVI | Depends on TV codecs |
| Stability | High | Depends on the power of the Wi-Fi module |
This method is advantageous because playback controls (pause, rewind) are often available directly from the TV remote, unlike simple screen mirroring. However, image quality may depend on the speed of the phone's processor, which is acting as a server at this point.
Problems with codecs and file formats
It often happens that the connection is established successfully, but the TV refuses to play the video, displaying the error "Unsupported format" or "File is corrupted." This doesn't mean the method doesn't work. The problem lies in codecs, which compress video. LG TVs have built-in decoders, but they are not omnivorous.
The most versatile container is .mp4 with video codec H.264 (AVC) and audio track AACIf your video is shot in the format HEVC (H.265), which is often used by modern smartphones to save space, may not be supported by older TV models. In this case, converting the file on a computer before saving it to a flash drive will help.
Also pay attention to the resolution. If you are trying to output the video in 4K on a TV with support only Full HD, compatibility issues may arise, although usually the TV simply scales the image. Audio tracks of the format DTS may not be playable due to licensing restrictions, while Dolby Digital (AC3) usually works fine.
Setting resolution and frame rate
When connecting wirelessly via Screen Share or Miracast, it's important to consider the image output settings. Your phone may attempt to stream the image at the native screen resolution, which puts strain on the transmission channel. If you experience choppy playback or audio desync, consider reducing the streaming quality in your phone's settings.
Go to the display settings on your smartphone. Find the option that controls the streaming resolution. Sometimes it's hidden in the Developer Options menu or in the settings of a specific Casts app. Lower the resolution to 1280x720 Often makes the picture smoother, removing jerkiness caused by insufficient Wi-Fi Direct channel bandwidth.
Frame rate also plays a role. Standard 60 Hz can be difficult to process in real time without a powerful router. Try installing 30 Hz, if this option is available. This is especially relevant when viewing static presentations or photographs, where high smoothness is not critical, but clarity is.
⚠️ Warning: Changing resolution settings in the Developer Options menu on Android may affect the functionality of the smartphone's interface. Be careful and record the original settings to restore everything as it was.
Using Bluetooth for Transfer (Audio and Photo)
While Bluetooth isn't designed for transmitting live video streams due to its low bandwidth, it can be used to transmit still images or set up an audio channel. If your goal is to display a photo slideshow with background music, this method is quite viable.
Pair your phone and TV using the Bluetooth menu in Settings LGOnce paired, select a photo on your phone, tap "Share," and select Bluetooth. Send the file to your TV. The image will appear in your TV's gallery. This method isn't suitable for videos—the file will take too long to transfer, and streaming won't work.
However, if you simply need to output audio from your phone to your TV's speakers (for example, to listen to podcasts or music), Bluetooth is ideal. In the TV's sound menu, select output to a Bluetooth device (your phone) or, conversely, connect your phone to the TV speakers.
Frequently Asked Questions (FAQ)
Is it possible to transfer video from iPhone to LG without Wi-Fi?
Yes, it's possible. Use a Lightning to HDMI cable (adapter) for a direct connection. Wireless methods like AirPlay require devices to be on the same network, but if you don't have a router, you can create a hotspot on your iPhone and connect your TV to it, although this doesn't require internet access.
Why doesn't my LG TV see my phone in Screen Share?
Make sure Bluetooth (often used for initial discovery) and Wi-Fi are enabled on both devices. Also, check that your phone isn't set to "Invisible" mode in the connection settings. Restarting both devices often resolves the discovery issue.
Video is lagging when transmitting via Wi-Fi Direct. What should I do?
Move closer to the TV and remove any obstacles. Make sure background apps downloading data are closed on your phone. Try lowering the streaming image resolution in your phone's settings.
Is internet access required for the LG TV Plus app to work?
Internet access is required for initial installation and app updates. However, for the basic remote control functionality and photo/video transfer over the local network (if the devices are already paired and on the same network), an active internet connection is not always required, but functionality may be limited.
Which cable is best for LG and Android?
The best option is an original USB-C to HDMI adapter from the phone manufacturer. Cheaper alternatives often don't support video transmission, functioning only as chargers. Look for video output support markings.