I had the upper left screw stuck and a bit stripped. What worked for me was removing the optical bay as much as I could (possible since 2/3 screws were out) and wiggle it around the last screw. The last screw came off really easily after.
Media vez obtengan, podras ver un gráfico de la reputación que han obtenido con el tiempo.
Aquí está una vista previa de cómo lucirá el gráfico:
Aún no has no adquirido reputación.