Take the notch face down (the side with steps) of the transparent screen and tear off the upper protective film and install it in the upper shell limit frame (Figure 1), and then paste the protective film back, as shown in Figure 2.
Take the screen gap face down (with a step side) and tear open the upper protective film to install in the upper shell limit box (Figure 1), and then attach back to the protective film, as shown in Figure 2.
Remove the protective film with the notch face down (step side) and install it into the upper shell limit frame (Fig. 1), and then paste the protective film back, as shown in Fig. 2.<br>