If you're out of warranty, use the following link to locate a service center in your area: http://www.samsung.com/us/support/service/location, Thank you for bringing this to our attention. Angie Mencia. - or remove dongle from port then unplug tv for 10 min then power tv on then plug in dongle again. Then unplug the tv and wait 30 minutes. It had a DVI, HDMI port. The screens would just go dark for a few minutes and then I'd get a "No Signal". If you need to do a Factory Mode reset on your TV you will need to power off the TV and then on your remote control press Mute 182 Power simultaneously. Model code UN55LS03N. 8036140.sd.10, I fixed my problem with hdmi out my motherboard ga ma 78gm us2h with built in graphic card ati radeon hd 3200 after 10 days i was no sleep by those steps:-. Then turn on with just one thing connected then power up tgat device. Oh, and I then chatted with another samsung person and she said the guy I had previously chatted with needed additional training and she would tell her manager about him. http://bit.ly/2kZXrit. Thank you! I did everything from ound Ic's, one Signatel and one from Nvidia. I tried the switching off for 10min as well as the reset but still the same issue. Unplug the power from TV/LCD for 10 minutes. With the busy Easter weekend, we haven't tried this,yet. My husband is going to try a factory reset. The directions were really helpful. Try this Krystal: 1. @vanjen. I bought the TV two weeks ago (Samsung UN55NU6900FXZC 55" 4K Ultra HD Smart TV) Works fine, wi-fi works; works with Chromecast. If you hold the exit button for 30 seconds (sometimes not that long), a box will come up asking if you want to set back to factory settings. I was totally surprised. I also made sure to update the systems firmware. @garymcc1. Thanks for the quick reply. It’s picking up plugged hdmi port but there’s no signal. You need a 4DK hdmi cable...a regular one won’t work with newer Samsung tvs. CEC is Consumer Electronic Control, it is just one of these HDMI clones. It seems that sometimes the cables burn out or the pins somehow get bent. 11/24/2014 by If you had a the old TV for a few years at least you probably did not have an HDMI 2.0 cable to start with and you may not even have had an HDMI 1.4, it may have only been a 1.1. computeripodrepair. Krystal Shapland. I'm not going to bother paying to fix an old plasma TV so a $10 HDMI box is on the way... probably won't buy another Samsung either. But thanks a lot for the reply, April 29 by I had the same error. Thanks for this. :(, 10/14/2014 by press the buttons sequentially, not simultaneously. I have tried all the solutions listed in this forum and even manually refreshed the software. however….this time when I connect this PC, the Samsung is recognizing the HDMI( it knows something is connected) but the screen is showing NO SIGNAL and it states to turn on the device ( which it is ON). Am I doomed to watch TV in non-HD until I can afford another TV? 3. at first i thought it was a problem with the cable box until i looked at a few videos showing what may have caused this issue and thats when i noticed how hot the main board got when i turned … There is also a way to reset the HDMI ports in that menu as well. Vinith Battula. Generally it is best to start the TV first, then your Blu-ray player or other source device which will initiate the handshake. Yep - just had this issue on a Samsung Plasma 3D Full HD - worked perfectly, thanks! Any help would be appreciated: Unfortunately, if you've tried different HDMI cables and resetting the television to no avail, service would need the next step. Cuz i'm trying to connect my led with desktop through hdmi port but no signals so far. I have a UE46C6000RK I have tried everything in this post and I am thinking it is the main board aka the T2 board, T-Con or main board as some people call it basically the board we’re all the HMDI connections live on?