I have a samsung smart hdtv model# un50eh5300f . I'm dealing with a upside down screen on the tv. need help in fixing

How to fix upside down TV screen Samsung TV

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Oct 10, 2022 - The first way to fix an upside-down 180-degree picture. It could be that the wrong display type is set in the settings. This is pretty easy to ...

Probably an issue with the actual screen.

Hi Ben.
see if this link helps you find out why.
samsung tv un50eh5300f keeps blowing the fuse Google Search

Samsung say you should try the factory reset option.
If that doesn't work it could be a fault on the main board. Sometimes this happens when boards are replaced.
There is also a service mode that allows you to flip the main screen. You can find how to access that by searching YouTube with the words "Samsung TV picture upside down".
Try the other options first though.

Here is what to check when your TV is turned on, power light is ON, but no picture is seen or sound is heard:

1 - Be sure the component you are using (Xbox, Cable, SAT, ROKU) is turned ON.
2 - Check to be sure all cable and cords are securely connected to the TV inputs and component outputs.
3 - Make sure you are on the correct input as some TV's will show a black screen if there is nothing connected to that input.
4 - Unplug the input you are trying to use from the TV (such as an HDMI Cable) and plug it back in.
5 - Check for signs of damage on all cords and cables from the TV to all components.
6 - Make sure the TV is not in ENERGY SAVE MODE, press the button on the remote control to go back to normal mode.
7 - Unplug the TV for 10 minutes to see if there was a temporary one time issue with the TV.
8 - Disconnect the TV from power for 2 minutes, then when plugging it back in PRESS AND HOLD THE POWER BUTTON ON THE TV FOR 10 to 20 SECONDS to try and force the TV to reset.
9 - If after checking all these different issues, you may have a Faulty Power Supply Board, A Bad Capacitor on the Power Supply Board, Loose Wire Harness, or Loose Ribbon Connector in the TV itself.
10 - Most likely when a TV has the power light ON but NO PICTURE and NO SOUND, it is the Power Supply Board that has failed.

BTW, here are solutions for you to play iTunes movies on Samsung smart TV

Same exact thing going on with ours !!! Same model !

www.samsung.com/us/support/

have u just replace the main signal board if so u need to contac a sansung service center , and ask for the code to puit normal