T8SG V2 Plus - display problem

Hello Guys,

First of all I'm new in the hoby and I bought my T8SG V2 Plus (Carbon edition) few months ago.
I recently took time to configure my transmitter and I'm stuck with a display problem... Here is a link with pictures and vids: 1drv.ms/u/s!Asy-bMhwnaRWgqdtbQHQGTRH45R0rA?e=VW4S0X
As you can see, the display show inverted to 180 degree as well as rotated to 180 degree image.
Sometime it is just trim on the display, sometime the display is blinking...

I really don't know what to do, I updated it with the most recent firmware but still the same problem.

If anyone can give me a clue of what to do, it will be awesome !

Thank you guys!

Thanks for your answer!
What do you mean by display flat cable ? The cable linked to the board ?
Is it easy to open the remote and replug this cable ?

I opened the back of the remote and I found "T8SG V3 Plus" on the board...
But the screen seems to be connected to the other side, right ?
I will try to contact jumper's support before trying to reseat the cable...