I disconnected the plug of the display power supply and put it again more firmly. After this the problem has not occured once again, up to now. I have not done the factory default yet.
The screen of my PM5 (26 months old) does not turn off after my trainings. When I finish my exercise, I turn it off by pushing 4 times the menu button. But it turns on again. I have to remove the batteries to stop it. This "behaviour" happens since 6 weeks aproximately. I have the latest firmware. M...