My Samsung television turns off automatically
For your convenience, there are many ways for your TV to connect with other devices and automatically turn on or off when needed. However, if your TV is turning off and on continuously, there are one or two simple actions you can take to fix it. The first step is unplugging the TV.
There are four cases in which your TV either turns itself off or appears to turn itself off.
ㆍCustomer is using the TV as a monitor and the PC is in sleep mode
ㆍNo signal from Cable or satellite box
ㆍSleep timer is set
ㆍOff timer is set
Please see the below list of possible solutions, but please note that some of the functions below may not apply to all models.
In some cases, a software update can correct the problem. Updates can take up to 30 minutes depending on network speed.
Your TV will receive software updates to add new features or fix bugs. No matter what TV you have, keeping your software up to date is very important. You can update your TV's software over the internet or using a USB flash drive
TVs 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 you do not want this function, navigate to Settings > General > Network > Expert Settings > Power On with Mobile, and turn the setting off.
Check to see if you have a Sleep Timer set. This appears on older models. and can be changed by going to Menu > System > Time > Sleep Timer
Some older models can turn themselves on and off if the Standby Mode Upgrade option in the menu is enabled.If this function is enabled, your TV will partly turn on (there should be no sound or picture) and only the stand-by light will flash. In this mode the TV searches for the latest firmware update via the RF broadcast signal and receives the latest update if one is present.
You can change this in Settings > Software Upgrade > Standby Mode Upgrade and then set the feature to Off
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