If you have switched off it by using power button to its remote control, you must have its remote control to switch it back on. Anyway, try pressing the Ch up or Vol up buttons once. In rare cases, this might make it switch back on.
Restart your device
Close & reopen the YouTube TV app
Check for app or device updates
Check your internet connection
Check on your location permissions
If you wish to get setup codes, three
digits, four digits or five digit ones, check this link. Pull up older posts there. Setup code list and setup instructions to
some popular model remote controls are given. Select the 'Timeslide'
option from the drop-down list by the 'Sidebar' at the display
window. It will make search easy.
To setup so a firestick could control my Mastertech tv when I tried element from the brands to choose from it worked like a charm for on/off control, volume and mute controls from the firestick. So you might try using Element as a brand or the codes for Element tv's. BTW, I went through several brands before I landed on Element which worked.
Hi David, indicate the brand and model of the team you are commenting on, in order to find the best possible solution
I wait your answer
Regards Franco Dosil
Hola David, indica marca y modelo del equipo que estas comentando, para poder encontrar la mejor soluci?n posible
Espero tu respuesta
Saludos Franco Dosil
Hello ! It sounds like you are experiencing some issues with your TCL TV. It's great that the backlight lights are working fine. The blinking *********** light and white screen definitely indicate a problem.
One possible issue could be with the internal circuitry or the display panel itself. It's best to contact TCL support or a professional technician to diagnose and fix the problem. In the meantime, you can try power cycling the TV by unplugging it for a few minutes and then plugging it back in.
As for uploading a video, you can try connecting your device to a computer and transferring the video file that way. Alternatively, you can upload the video to a platform like YouTube and share the link for others to view. I hope this helps!
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Unlock procedure and to override the password lock to many popular brand TVs are given.
Question edited for clarity and add CAPS.
To update the software, it has to be connected to the Internet, and it sounds like there is no internet connection via the television, so it is looking for a USB Cable to a computer.
https://www.google.com/search?q=ematic+at103b+update+the+software+version
..
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