Hi, the issue seems to have been that the second ribbon of the display was not properly connected (the touch controller ?). I unplugged the display and put it back again and now it works.
I am new to NXP dev boards but are display often to be put on the other side of the boards with none of the gpio/sensors/buttons ? Or is it only for the MiMXRT1064 ?
But so it was my bad in the end... Thanks