The new Windows Phone 8.1 has already arrived in the market even though its predecessor, the Windows Phone 8 platform, captured the market with its excellent features and has continued to be extremely popular ever since it was first launched. However, despite the immense popularity and all the great new features, there were still several flaws with the Windows Phone 8. A lot of people have been having black screen issue during calls on Windows Phone 8, in which the screen of the phone goes black when the users receive a call or make a call from their Windows Phone 8 device. This makes the phone unresponsive, so it becomes difficult to end or cancel the call. This problem