I unplugged my machine and left it unplugged all day while I was at work, then attempted the reset procedure that evening, which worked only for about a short time. You will probably have to send it in for repair as the main board most likely had a component fail on it.
Contact SamsungTam and they should be able to help
Mine is doing the same exact thing!! I did everything you did but mine didn’t work after, I’ve tried the stop button, unplugging it for the day and plugging it in and still nothing, just does everything you described, how can I fix this, I paid 3k for it through Aaron’s rent, I was getting ready to dj and all of a sudden it stopped working, last used was spring and now all of a sudden it’s not working