Samsung TV Powers On & Off Automatically

The most common reasons for your TV to turn on and/or off by itself is having external devices connected to the TV or your TV settings. Your HDMI device connections or remote control may be triggering your TV to turn on automatically. 

Samsung TV’s which can connect to SmartThings can be turned on using compatible devices, sometimes automatically. However, if abnormal “power on” signals are sent through the wireless network, they will trigger this function and make the TV turn on. 

If your TV is regularly switching off at a specific time/date, you may have set up Sleep Timer, Head to our guide Using Sleep Timer on your Samsung TV to learn how to switch this setting off.

Samsung 8K TV

Information Icon Please Note: The information on this page is for Australian products only. Models, sequences or settings will vary depending on location and/or where the product had been purchased. To be redirected to your local support page please click here.

1 Switch off and unplug the TV for a minute. Then re-plug your TV back in
2 Unplug all HDMI connections from your TV
3 Monitor whether your TV may be continuing to power on automatically. If your TV no longer powers on automatically, connect your HDMI device/s one by one to see which device may be triggering your TV to switch on automatically
4 If your TV continues to power on automatically after removing all TV HDMI connections, remove the batteries of your TV remote to ensure your remote is not triggering the TV to switch on

If you have tried the above steps and still noticing your Samsung TV automatically turning on you may need to update the firmware to the latest software

Check if Power On with Mobile has been activated
1 Press the home button Home button on your remote control and select Settings
Samsung Smart Hub.
2 Scroll down to General General and then select Network.
General Settings
3 Choose Expert Settings.
Network Settings
4 Highlight Power On with Mobile and press enter on your remote control to turn this feature Off
Power on with Mobile

Information Icon Please Note: If you disable this setting you WILL NOT be able to power on your Samsung TV via the SmartThings app.

Check Event Logs

Sometimes abnormal power occurs due to external devices or the CEC command. In this case, by checking the TV history function, you can find what is making the TV turn on by itself.

1 Go to the Menu & select Support
tv support menu
2 Click About TV and check the Event logs.
about tv menu


  • About TV is only available with products manufactured in 2019 or later.
  • Make sure that the TV firmware is updated to the latest version.

1. “Power-on reason” appears in the log history

If Power-on Reason appears in the Event Log, you can check why the TV turned on. Your TV can be powered on by mobile apps, sensors, BT, and voice. You can solve the problem by disconnecting or deactivating the connected devices that operate the TV.

power on reason check
  • YouTube - An app like YouTube or the SmartThings app on a device connected to the same AP could be the reason for the TV to turn on.
  • Sensor - Detected and operated by the brightness sensor set in Ambient Mode.
  • WOL - Turned on by eMac phy (Magic Packet) function.
  • BLE - Turned on by the Wake up function of a BT device. 

2. “CEC command” appears in the log history

The CEC feature enables you to control HDMI connected devices with a single remote control. When an HDMI device activates, it may cause the TV to turn on. You can solve the issue by deactivating that feature.

Home > Settings > General > External Device Manager > Anynet+ (HDMI-CEC)

cec command check

3. “One Invisible connection” appears in the log history

Sometimes the TV turns on/off automatically when your connection is poor (AOC Tilt). In this case, thoroughly check all of the cable connections between the TV and OCB.

one invisible connection check
Reset the TV to its original settings

If the above-mentioned methods do not work, perform a Factory Reset. This allows all your TV settings to revert to the factory default. Follow the steps below to reset your TV:

1 With your TV turned on, press the Home Home button button on your remote control and then select Settings cog Settings.
Samsung TV Smart Hub/Eden Menu
2 Select  Spanner looking icon Generaland then Reset. A pop-up will appear asking you to enter your PIN. Once you have entered your PIN, select Yes and your TV will then reset.
Reset option at the bottom of the list.
Menu Path by year



2011 (D Series)

MENU > System > Plug & Play > (Initial setup)

2012 (E Series)

MENU > Support > Self Diagnosis

2013 (F Series)

Screen Menu > Support > Self Diagnosis > Reset

2014 (H Series)

Support > Self Diagnosis > Reset

2015 (J Series)

Menu/123 > Menu > Support > Self Diagnosis > Reset

2016 (K Series)

Home > Settings > Support > Self Diagnosis > Reset

2017 (M Series)

Home> Settings > Support > Self Diagnosis > Reset

2018 (NU Series) 

Home> Settings > Support > Self Diagnosis > Reset

2019 (Q Series)

Home > Settings > General >  Reset

2020 (T Series) 

Home > Settings > General > Reset

2021 (A Series) 

Home > Settings > General > Reset

Update Firmware (2017 - 2019 TVs)

If you have tried the above steps and still noticing your Samsung TV automatically turning on, you may need to update the Submicom to the latest firmware (2017 - 2019 Samsung TVs). 

If this is the case, please get in touch with our Technical Team on 1300 362 603. Our Technical Team will be able to assist in upgrading the firmware remotely. 

6 If the issue persists, please contact us on 1300 362 603 or via Chat Support

If you require further assistance, please consult the user manual from our Manuals & Downloads page or contact our Samsung Care Australia experts on 1300 362 603 (Toll Free in Australia). You can also contact our Chat Support team or reach us through Samsung Members Community

  This product should be mounted to a wall or other suitable surface to avoid serious injury. Find out more here.