Grom2 says it the right way. It isn't a bug of the phone, the problemen didn't occur before I installed ABS. When I use the flight modus and turn on my screen, ABS wants to connect to a wifi network, this is not possible because the flight modus is on. When I turn off the flight modus the wifi controll is already jammed and the only thing I can do is restart my phone. They can't get along. ABS should get the function to turn off all data, not only wifi. Then a don't have to use the flight modus anymore.