First disconnect the battery by pulling the red and black cable (indicated with a red circle) away from the printboard. You might have to pull quite hard

Disconnect the first screen cable by lifting the black piece of the long connector (indicated in yellow) away from the circuit board. The cable should then slide out

Disconnect the second cable (marked in blue) of the screen by lifting the white part of the connector. Once the white part is up, the cable slides out.

unscrew the screen from the print board (screws indicated in black on the first picture)