Press and hold down the "Home" and "Power" buttons at the same time for upto 10 seconds. Then you close the app that has this issue. ![]() You just need to press the recent applications menu (usually the first left button) in your phone. Most of the times, it might be a temporary loading issue. Usually when you open an app, you will see a black screen for few seconds and then app will crash with or without an error message. It is one of the most common problem in android operating system. ![]() ![]() Common PDA-Net Tecvoz App Problems and Troubleshooting Steps I'm getting black screen (blank screen) when I open PDA-Net Tecvoz?
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