Unplug all the cables on the back of your Roku TV. Solve the issue by following these instructions: If you notice your display flickering or flashing, the issue might be with the power cable or your HDMI cable. Put the batteries back in and open your Smart TV using the remote. Press each button several times and shake the remote. Here are the instructions to power reset the remote: To be sure, we recommend power cycling your remote as well. Wait 5-10 minutes before plugging in and turning on the TV. 
Turn off the TV and remove the power cord. To power reset the TV, follow these steps: Power cycling your TV and remote will remove defective electrical issues causing the black screen. This method is a popular method for Sharp Roku TV troubleshooting. Solution #2: Power cycle your Sharp Roku TV Let a minute pass before plugging the power cord back into the socket and turning on the TV. However, if this doesn’t work, keep your TV on then unplug the power cord. Wait 15 to 30 seconds before turning it on again. 
Turn off the TV using your Roku remote.
If your Roku TV has a black screen and no audio, the simplest solution is to restart your TV: While it’s difficult to pinpoint the exact reason why your TV screen is black, you can try a few of these tips until your Sharp Roku TV is up and running. How do you fix a black screen on a sharp Roku? If this doesn’t work, get a Roku replacement remote. You might need to change the batteries or try this hack to fix your remote. If you’re having trouble restarting your TV, then the issue might be with your Roku remote. We have a step-by-step guide for you in the next section!) Meanwhile, if there is no video and audio on your TV, all you need to do is restart the TV to resolve the issue. If the TV screen is dark, but the audio is still working, there is an issue with your power cable, or the display backlight has failed. Figuring out the specific reason for the issue will help you address what to troubleshoot. The problem might be with your Roku remote or the TV itself. There are a few reasons why your Roku TV is stuck on a black screen. Why is my Roku TV stuck on a black screen?
3 What to do if reset or restarting my Roku TV doesn’t work?. 2.5.1 How do I factory reset my Sharp TV black screen?. 2.5 Solution #5: Factory reset the Sharp Roku TV. 
2.4 Solution #4: Reset the Sharp Roku TV using your remote. 2.3 Solution #3: Check the cable connections. 2.2 Solution #2: Power cycle your Sharp Roku TV. 2.1 Solution #1: Restart your Sharp Roku TV. 2 How do you fix a black screen on a sharp Roku?. 1 Why is my Roku TV stuck on a black screen?.
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