Smart TV's being able to run apps in a similar way as a smartphone or computer, there could be situations when the app gives an error or ceases to work. 

This guide by Fixwebnode will provide you with steps on how to troubleshoot App issues on Samsung Smart TVs.

What to do when Samsung Smart TV Apps won't start

1. Power Cycle the Devices

Usually, the simplest way to resolve usual issues with the TV is to restart it.

So do the following:

• Unplug the power cables from your modem, router, and TV but keep the Ethernet cables in place. 
• Plug in your modem and router first, wait for it to connect.
• Then plug in the TV and turn it on.

2. Reinstall the app

If you are still facing issues, then we will uninstall and reinstall the app you are having issues with to see it can be fixed.

To Uninstall App:

• Press the Smart Hub or Home button from your remote. 
• Navigate to the APPS section. 
• Choose Settings. 
• Select the app you wish to uninstall.
• Press Delete. 
• Confirm deletion by selecting Delete.

To Install App:

• Tap the Smart Hub button from your remote.
• Go to Apps.
• Choose the Magnifying glass icon to locate the app you want to install.
• Input the Name of the application you want to install. Then select Done.
• Now select Download.
• When the download is done, select Open to use your new app.

Now Try the device to see if the issue is resolved.

3. Check for Samsung Smart TV Software Updates

Smart TVs require firmware updates to improve their features, fix any bugs, and add new applications. 

These updates can be achieved by connecting your television to the internet and doing the update through the Web. 

To do this:

• Hit the Menu button on your remote control.
• Choose Support.
• Go to Software Update. If this area is greyed out, it could be because the TV has only recently been turned on (allow a minute, then try again) or because the TV is operating through Smart Hub mode. To bypass this issue, try entering Smart Hub mode after watching a channel through the TV's own tuner. 
• Turn on Auto update to make sure you're always getting the newest releases.
• To carry out a manual scan for an update, select Update Now.
• Your TV will now look for update.
• If a update is detected, opt for Yes to download and install it.
• Upon completion of the update, you may go back to watching your TV program.

4. Clear the app's cache and data

If an app is still not working after you have soft reset your TV and checked for software updates, try clearing the app's cache and data. This will remove any temporary files or corrupted data that may be causing the problem. 

To clear the app's cache and data, follow these steps:

• Press the Home button on your TV remote.
• Scroll to and select the app that is not working.
• Press the Settings button on your remote.
• Select Clear Cache and then select Clear Data.

5. Make sure that your TV is connected to a strong Wi-Fi network

• Check the Wi-Fi signal strength on your TV.
• You can do this by going to Settings , then selecting Network  and finally Network Status.
• If the Wi-Fi signal strength is weak, try moving your TV closer to your router or using a Wi-Fi extender.
• You can also try restarting your router.

6. Try restarting your router

• Unplug the power cord from your router and wait for about 30 seconds.
• Plug the power cord back into your router and wait for it to start up.

7. Check the app's website or social media pages for known issues

Go to the app's website or social media pages and search for any known issues with the app.

If there is a known issue, the app developer may have released a fix.

You can try updating the app to the latest version to see if that fixes the problem.

Here is a step-by-step example of how to check the Netflix website for known issues with the Netflix app on Samsung Smart TVs:

• Go to the Netflix Help Center website via https://help.netflix.com/en/is-netflix-down. This also referred to as "Is Neflix Down" page.
• Scroll down to see if Netflix Service is Down or Up.
• If there are any known issues with the Netflix app on Samsung Smart TVs, they will be listed on this page.

8. Reset Smart Hub

If you have tried all of the above steps and the app is still not working, you can try resetting Smart Hub. This will reset all of the apps on your TV to their factory defaults. 

To reset Smart Hub, follow these steps:

• Press the Home button on your TV remote.
• Scroll to and select Support.
• Select Self Diagnosis.
• Select Reset Smart Hub.