How to Fix Screen Mirroring Lag on LG Smart TV

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For those who are facing lag while screen monitoring in LG smart TV, you come to the right place as you will be informed how to fix the issue. Please read the whole page carefully and prepare a piece of paper just in case there is something to write down.

Method 1: Updating apps

    1. Firstly, you have to go to settings in your LG Smart TV.
    2. Then, go to My Apps to check for updates.
    3. Please update all the apps that have to be updated.
    4. Afterward, restart your LG smart TV and check if the issue is fixed.

Method 2: Uninstalling and reinstalling Android system webview update

    1. Go to settings as the first step.
    2. Second, go to apps to find all the apps installed on your LG smart TV.
    3. Please tap on Android System WebView.
    4. After that, tap on Uninstall update to uninstall the last update to Android System WebView.
    5. The fifth step is to go to PlayStore on your LG smart TV and look for Android System WebView.
    6. When it shows an update, please update it to fix the issue.

Method 3: Uninstalling and reinstalling Chromecast Built In

There is a possibility of the screen mirroring lag on LG smart TV to be caused by the Chromecast Built In. if it is the case, here is every instruction to follow:

    1. First of all, you should go to Settings.
    2. On the Settings, go to all apps where you will be able to find all apps that are installed on your LG smart TV on Chromecast Built In.
    3. The next step to be done is to tap on Uninstall update in order to uninstall the last update to Chromecast Build It.
    4. After uninstalling it, go to the Play Store on your LG smart TV and look for Chromecast Build It where it shows the update.
    5. Please update it to fix the issue.

Apparently, screen mirroring lag is also happening due to improper installation of the new version of Chromecast Build In in your LG smart TV. It explains why it is a must to uninstall and reinstall it to be able to know if it is the real cause of the issue.

Method 4: Clearing data of Chromecast Built In

In some cases, Chroemcast cache data is the cause of the screen mirroring lag in LG smart TV. If you want to get rid of the issue, you are encouraged to fix it by following these following steps:

    1. At the beginning, go to Settings.
    2. Next, go to system apps.
    3. Thirdly, go to all apps.
    4. On all aps, tap on the Chromecast Build In app.
    5. After tapping on it, clear cache and data.
    6. Once you are done following the strep, restart your LG smart TV.

Method 5: Updating Android System WebView in your mobile

When your LG smart TV does not show any issues but there is a screen mirroring lag, it might be due to a connected mobile which used to screen mirroring. As the effort to solve the issue, you can try the following method:

    1. First and foremost, check and update the Android System WebView app on your mobile.
    2. To do this, you can go to your Google Play Store.
    3. When you are there, look for the Android System WebView.
    4. Please check if there is an available update.
    5. If there is any, you have to press the Update button.
    6. Once you have updated the app, remember to restart the mobile and then connect to your LG smart TV.

Method 6: Clearing mobile Android System WebView app cache and data

If there is nothing wrong with your LG smart TV and you are sure that your mobile Android System WebView is up to date, then the screen mirroring lag is caused due to corrupted data of the app. If you want to fix the issue, you will have to clear the Android System WebView app cache and data. If you have no idea how to do it, it can be done easily by following the steps below:

    1. Firstly, you should go to settings of your mobile.
    2. When you are there, go to all apps.
    3. Now, it is time for you to find an Android System WebView app.
    4. Upon finding it, tap on it.
    5. Afterward, go to storage usage.
    6. Then, clear the cache and data of the app.
    7. When everything is done, do not forget to restart your mobile and connect it.

Method 7: Changing router

For those who are using the old router, it is possible that the new LG smart TV is not compatible with the old routers once you try to upgrade your router and check. According to the community, most people (nearly 70% of them) have said that after upgrading to the new router, they never encountered any screen mirroring lag issue. Basically, if your routers are old, it is better for you to try to upgrade them to fix your LG smart TV screen mirroring lag issue.

Method 8: Enabling USB debugging

For those who are using USB cord in order to screen mirroring in LG smart TV and you encounter lag issue, here is step by step to follow:

    1. The first thing that you have to do is to enable developer options. To do this, you need to go to settings.
    2. Next, tap About Phone.
    3. Please tap 7 times on bui8ld number to enable developer options.
    4. In the fourth step, go to developer options and scroll down there.
    5. When you find USB debugging, enable it.
    6. After enabling it, restart your device.

If no one of the methods to fix screen mirroring lag on LG smart TV above works for you, you are recommended to contact the customer support of LG. There are several ways to choose from to contact them. Feel free to try any way that you want.

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