How to Fix Being Unable Power Off a Samsung Smart TV

Authored by: Support.com Tech Pro Team

How to Fix Being Unable to Power Off a Samsung Smart TV

If you're having trouble powering off your Samsung Smart TV, follow these steps:

1. Check the Remote Control:
   • Ensure the remote control has fresh batteries and is working properly.
   • Try using the power button on the TV itself if the remote is unresponsive.
2. Unplug the TV:
   • Unplug the TV from the power outlet and wait for about 30 seconds.
   • Plug it back in and try turning it off again using the remote or the power button on the TV.
3. Perform a Soft Reset:
   • While the TV is on, press and hold the power button on the remote until the TV turns off and on again.
   • This can help resolve minor software glitches.
4. Check for Firmware Updates:
   • Go to Settings > Support > Software Update and check for any available updates.
   • Install the updates if available, as they may resolve the issue.
5. Perform a Factory Reset:
   • Go to Settings > Support > Self Diagnosis > Reset.
   • Enter your PIN (default is 0000) and confirm the reset.
   • This will restore the TV to its factory settings and may resolve the power issue.
6. Check for External Device Interference:
   • Disconnect all external devices (HDMI, USB, etc.) and try turning off the TV again.
   • Sometimes, connected devices can interfere with the TV’s power functions.
7. Contact Samsung Support:
   • If the issue persists, contact Samsung customer support for further assistance. They may provide additional troubleshooting steps or arrange for a technician visit.

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If you are still having trouble, refer to the Step-By-Step Guide below, or Contact Support.Com for Personalized Assistance.

1. Introduction

It can be frustrating when your Samsung Smart TV won't respond properly, especially when you're just trying to turn it off.

This guide will walk you through, step by step, determining the cause and making sure your television functions properly.

2. Use Television Power Button

If your television was turned on using the power button on the television itself, rather than the remote, it may not respond to the remote.

1. Press the power button on the television itself.
   

3. Check Remote Batteries

1. Lift the back cover up and away from the remote.
2. Remove and re-insert the 2 batteries.
3. Reposition the back cover onto the remote, and slide down to click it into place.
   

1. If the remote fails to respond properly after this, replace the existing set of batteries with new ones.

4. IR Port Blocked

Depending on how your TV is set up, there may be some sort of obstruction that is blocking or makes it more difficult for your TV to see the infra-red signals that are being sent by your remote control.

Locate your television's IR sensor and ensure that there is no blockage that would prevent your remote control from making contact with it.

• On some low-profile televisions, the IR sensor may be hidden or less conspicuous. Sometimes, shining a flashlight around the outer bezel can reveal its location:
  

• Some televisions are are a bit more obvious when it comes to IR sensor location:
  

5. HDMI CEC Check

Many Smart TVs have a built-in feature called HDMI CEC (Consumer Electronics Control), or can sometimes be referred to as "Control over HDMI." With HDMI CEC, when your cable, satellite, or Blu-Ray player device is turned on, that device sends a special signal over the HDMI cable to turn on your television as well.

With some Smart TVs, this may disable the power button on your remote.

Try turning off any devices you may have connected to your television, such as your cable or satellite box, any streaming media players, or Blu-Ray players. If HDMI CEC is controlling your television, it should turn itself off automatically.

6. Fluorescent Lights and Remotes

As a fluorescent light begins to die, it starts putting out a lot of wavelengths, other than just visible light. This includes both infra-red, and radio waves.

Your Smart TV relies on infra-red signals from your remote to control it. When that part of the spectrum has a lot of 'noise' in it, such as from a dying fluorescent light, your TV may have an issue properly sensing the infra-red signal being sent from your remote control.

Try turning off any lights in the area, then try your remote again. If it starts working properly, the lamp you turned off is the cause of the interference and should be replaced.

7. Hard Power Reset

Because your TV has not responded to the previous troubleshooting steps, it means your Smart TV's basic control system has crashed, and it will need to be physically power cycled.

1. Unplug your television from the power outlet.
   

1. Wait 10 seconds.
2. Plug the power back in.
3. Test, and make sure your television powers on and off properly.