- Unplug the TV for 30 seconds.
- Inspect the power cord for damage.
- Plug the TV power cord back into the wall outlet.
- Try to update the software.
- Disable the Power On with Mobile option.
- Set up a service request.
Why does my Samsung TV keep turning itself off and on again?
Problems with the Power Supply Sometimes the answer to the problem is as easy as double-checking the power cord and outlet. If there's not enough power, your Samsung TV won't be able to keep itself on, leading to automatic turn-offs after five seconds. Unplug your TV and connect it to a different power outlet.
Why does my Samsung TV keep turning on by itself?
If your Samsung TV turns on by itself, it's most likely because you have Anynet+ (HDMI-CEC) turned ON. Some HDMI devices (like your DVD player, for example) turn your TV on automatically when they turn on. To turn Anynet+ (HDMI-CEC) OFF, go to SETTINGS > GENERAL > EXTERNAL DEVICE MANAGER > ANYNET+ > OFF.
Why is my TV turning off by itself?
The most likely reason why your TV turns off by itself is that it has a timer that is set to a default duration and it shuts a TV off after a certain time. Other possible issues are that you may have power supply problems, connected device problems, low batteries on your remote control, or hardware problems.
Why does my TV turn on and off repeatedly?
If your TV turns on or off at regular intervals, such as 30 minutes to an hour, it's likely caused by power saving functions such as Idle TV Standby, On Timer, and Sleep Timer. If the TV turns on or off when an HDMI-connected device is powered on or off, check the Bravia Sync settings.27 Oct 2021