My decoder struggles to start, very often it does not start and remains stationary on the DREAM MULTIMEDIA home screen. Removing and reconnecting power for many times manages to start and from that moment on it works correctly. I tried with another 12V 5A external power supply but the defect does not change, I replaced the 4 4700uf capacitors but even these did not improve the problem. when it is off for many hours it starts more easily, but if I switch it off and on again quickly it remains blocked. Has this happened to anyone? What could it be?