No signal on samsung smart tv - Vizio GV42L 42 in. LCD Television

either repair shop of replace it if older make

https://eu.community.samsung.com/t5/TV-Audio-Video/samsung-smart-tv-stuck-on-start-screen-logo/td-p/161506
https://www.samsung.com/in/support/tv-audio-video/how-to-turn-on-boot-logo-in-samsung-smart-tv/
https://www.cnet.com/forums/discussions/smart-tv-problems-with-youtube-600338/
https://www.samsung.com/au/support/tv-audio-video/why-will-my-tv-not-power-on/
https://www.consumerreports.org/privacy/how-to-turn-off-smart-tv-snooping-features/

If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Firmware (Software) update procedure, and memory initialization of many popular brand TVs and other devices are given in detail.
Search the site by type in the "brand name" of your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

There are a lot of posts about this and a lot of things to try: http://www.cnet.com/forums/discussions/samsung-smart-tv-turning-off-609897/

I assume your Samsung TV has Smart features. If that is the case, you may need to do the following..

1. Connect your TV to your wireless Internet. Using the remote goto Menu -> Networks -> Network Settings -> Wireless
2. Select your network from the list and enter passwords if required.
3. You can view the Network status option to see what you are connect to and the signal strength.
4. Press the Smart feature key (multicolored key in the middle of the remote.
5. Look for the Netflix icon near the top of the screen. It may take a short while to load so be patient.
6. Enter your Netflix login account or select the free month option.

Keep in mind you may be asked to consent to some of the Samsung, Yahoo and other policies in order to use some features and they may collect information about what you view, etc. Read the policies found under the Menu. Also, this procedure works for the

When I turn my smart tv ue32eh5300 tv on i get a message weak or no signal. Howdo i get a signal

What is the problem you faces with this TV? Provide more details please. If you wish to get some details, check the site linked here. Pull up older posts. Check the site in 'Mosaic' view. It will make search easy. Electro help

Suggestion: Use WPS on TV and router. It self configures. Worked flawless for me.

Good Luck

Make sure you have it set to wireless off in the menu or it will not recognise the ethernet port on the back even if it is flashing. Most tvs with browsers come with the wirless function set to on. Also if it has search for internet signal you could try this to get it to rec. as well.