Hello, my Samsung watches are not working, more precisely display. I have tried to put it on charger and press both buttons for long time, press bottom button for long time but nothing happend. Sometimes display shows blue color, it looks like something is broken and i am not sure about it. I am sure that problem is in display, because it buzzles when i put them ON. I have those watches for 4 years so i dont want to throw them away yet, they are good partner to me. Thanks for your help.