Replugging screen : upside-down and multiple

Hello !

I just received a new screen to replace my broken OnePlus 5T screen. I thought it would be easy game : dissemble, plug and done.

However, the result is not quite what I expected. The screen is upside-down and displays two times what should appear once (as you will see attached). Also : the touch screen is at the right place, as if nothing was different from a new phone with perfect display…

Have I done something wrong… ? Do you have any solution?

Many thanks in advance !