LG TV has many advanced features, and screen sharing is a unique feature that allows users wirelessly share content from smartphones, tablets, or other devices to your LG TV. On the contrary, the screen share feature may not work properly on your LG smart TV due to some errors. You can proceed with the following troubleshooting methods to resolve the screen share not working issue on your LG smart TV.
How to Fix Screen Share Not Working on LG TV
Besides one of the popular smart TVs, it has a lot of issues. If you encounter a screen share not working issue, here are the causes and reasons to resolve the issue and thereby screen mirror your favorite content on your LG smart TV.
- Screen Share Won’t Respond
- Screen Share Malfunctions
- Screen Share Doesn’t Show
- Screen Share Turns Off
Screen Share Won’t Respond
Due to some technical errors, the screen share won’t respond properly. Here’s the specific reason and solution for the error.
- Incorrect input source
- Temporary bugs
- Technical glitches
- Unstable internet connection
Try out the below fixes for screen share that won’t respond on your LG smart TV.
1. Unpair and Re-pair the Casting Device
Sometimes a simple unpairing and re-pairing of the casting device will resolve the screen share issue on your LG smart TV.
 Turn on your LG smart TV and press the Home button on your remote control.
 From the home screen, scroll right and select Device Connector.
 Under Device Connector settings, select your paired casting device (ex: Smartphone, PC, Game Console, etc.).
 After that, select Screen Share and hit Start.
 Navigate to the top of the screen and click the Delete Pairing History option.
 Now, your device will unpair from the LG TV. You can pair the screen share device to the TV again to fix the error.
2. Change the Input Source
If you forget to change the input source on LG TV to screen sharing, you may face issues. So, overview the input sources and check if it’s working properly.
 After launching your LG TV, press the Input keys on your remote control to change the input source to mirroring mode.
 If you don’t have the Input key on your remote control, navigate to the Settings option and select Inputs/Sources from the available options.
 After that, under Active Inputs, select Screen Share.
3. Check the Internet Connection
For instance, ensure connect your LG TV to a WIFI connection and that the device from which you are about to screen mirror uses the same WiFi network.
- To check the internet speed, you can perform a speed test on your LG TV or other devices and ensure the download speed is above 5 Mbps.
- Instead of using a wireless WiFi network, you can use a wired ethernet cable to establish secure and stable internet connectivity.
- If there’s an issue with your WiFi router, you can soft reset it by just unplugging it and plugging it back.
Screen Share Malfunctions
If your LG TV malfunctions while screen sharing any content from your smartphone, here are the causes and fixes.
- Low-frequency band
- Outdated firmware
- Device interruptions
Proceed with the following fixes for screen share malfunctions on your LG smart TV.
1. Disable Bluetooth Devices
- When two or more Bluetooth devices simultaneously connect at the same time, an error may occur. So, you can disable all the Bluetooth devices nearby your LG TV to eradicate the error.
- If you’re using Bluetooth frequency of 2.4 Hz band, it may interface the signal, so you can switch it to a 5GHz WiFi band for convenient use.
2. Update LG TVs Firmware
If your firmware is outdated, you won’t get access to all features on your LG TV, which includes screen share. So, update your LG TV firmware to its latest version to solve the issue.
 Turn on your LG TV and navigate Settings.
 Select All Settings and choose the General menu from the list of options.
 Click About this TV option and tap Check for Updates.
 When there’s an update available, you will get a confirmation pop-up.
 Click Yes to proceed with the update.
Note: You can enable the Allow Automatic Updates to update the firmware automatically when there’s a new update available.
 Once the firmware is updated, you can try using the screen share feature and check if the issue gets resolved or not.
Screen Share Doesn’t show
Sometimes the contents from your screening device may not be displayed on your LG TV, while screen sharing. Here are the reasons and fixes for the issue.
- Incorrect settings
You can disable all the incorrect settings on your LG TV and screening device to fix the issue.
1. Disable the Firewall
A firewall is nothing but a security system that keeps track of and controls the incoming and outgoing network traffic in terms of predetermined security rules. So, there’s a possibility to breach while screen sharing from your PC to TV. You can disable the firewall o your PC to share the screen.
 Turn on your PC and press Windows + I keys simultaneously on the keyboard to open Settings.
 From there, navigate to the Search bar and enter Firewall & network protection and select it.
 Next, choose Domain Network.
 Under Domain Network, disable the Microsoft Defender Firewall option.
 A popup will display for confirmation. Click Yes.
 Now, proceed with the same steps for the Private Network option under the Firewall & network protection page.
 Once done, try to share your screen with LG TV and make sure the issue is solved.
2. Disable Simplink Feature
Simplink is a feature on LG smart TV that allows the users to control all the connected HDMI-compatible devices with their TV remote control. On the contrary, it may also have a negative effect on screen sharing. So, disable the feature to resolve the issue.
 Turn on your LG smart TV and press the Settings button on your remote control.
 Then, select All Settings and navigate to the Connection Settings menu.
 Now, highlight the Quick Start/Simplink (HDMI-CEC) option and turn it Off.
 After that, turn off your TV and turn it back on after a few minutes and try to proceed with screen share.
Screen Share Turns Off
If the screen share feature turns off repeatedly, it indicates a technical glitch in your system.
- Technical glitches
- Improper TV settings
You can perform basic power cycle and factory reset procedures on your LG TV to fix the issue.
1. Power Cycle LG TV
 Turn off your LG TV and remove all the cables from the HDMI port of your TV.
 Unplug the power cable from the wall outlet.
 Wait for 3-5 minutes, leaving the TV unplugged.
 After that, connect all the cables to the TV’s HDMI port and plug the power cable back into a wall outlet.
 Now, turn on your TV and try to perform screen mirroring.
2. Reset LG TV
 Press the Home button on your remote control and navigate the home screen.
 From there, click Settings and select All Settings.
 Under All Settings, click General.
 Further, select Reset to Initial Settings and hit OK.
 Once your TV restarts, it will revert to its default settings.
Contact LG Support
If none of those above-mentioned troubleshooting techniques aid you in resolving the screen share not working issue on LG TV, don’t worry. You can contact LG’s support care to assist you. The experts will solve any issue regarding LG smart TV. Additionally, you can also replace your TV with a new one if your LG TV is defective and under warranty.
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