Tolle Ware. Display works so far properly. However, it remains on and dark on (after about 1-2 days of non-use). The display simply refuses to do their job. But when I turn the phone (W580i) once and takes from the display its function again. Think however that this problem has more to do with the drivers of the mobile phone as the display itself. All in all still recommended since the installation was very easy to do with youtube instructions and it represents an economical alternative to a new purchase.