Guide with all the necessary steps so that you can change the screen of the Sony Xperia Z1 (L39H) yourself.
Insert the tip of the pick into the small slot at the top of the screen.
Traverse the contour with the tine without pressing, avoiding the bottom side to avoid damaging the flex.
The screen is delicate, it can break the glass or damage the display with ease.
Apply enough heat as many times as necessary to remove it easily.
Separate the screen, starting with the top part and finally the flex data cable.
To change only the glass window (in case of breakage, for example), consult the display separation guide:
http://yoloreparo.com/demo/manuales/otras-reparaciones-109/separacion-de-displays-613