Lines on screen

[lucia2024]

I've got two black lines on my screen and now I've got another one on top on the screen that appears and disappears, just wondering if there's a point of getting it fix?

[JAMES4578]

Hi @lucia2024  You have not named the model.  However  firstly check that you have the latest firmware on Samsung Support,can be updated via USB if not available over the air.  https://www.samsung.com/uk/support/ 

However that may not be the issue  ,could try power cycling by unplugging from mains for at least a minute and/or Factory Reset.   Are the main lines permanent and on all sources?  If still issues check cables are fine and if so would suggest disconnecting external devices for short period and trying again.  

However if picture Test produces errors suggests  there is a fault after other Troubleshooting suggests there is a fault and would need to contact Samsung for options.  varies slightly depending on model  https://www.samsung.com/support/tv-audio-video/picture-test/   The age of TV will play  will be a factor on how worthwhile it would be. 

[lucia2024]

Thank you for your reply
The model is UE50TU8000KXXU I will check for the latest firmware, apart from factory reset, I've tried everything! Two of the lines are permanent, but now I've got a new line that appears and disappears, and yes it happens in all sources and I've replaced all the cables

[lucia2024]

And just now, tv turns on and off repeatedly, doesn't stay on

[JAMES4578]

ok thank you for confirming, Yout Tv is a 2020 model so not that old really. The last Firmware update available is October 2023. https://www.samsung.com/uk/support/model/UE50TU8000KXXU/