I have a DDJ SR controller and last week the right cue button (round silver one) was not working all the time. So I took the controller to a very renowned technician. He changed the cue button switch and also the play (right) and the load buttons (left and right) as he told me that their switches needed to be changed. When I got it back, I tried it out and now these buttons are not working (cue headphones - left and right) and load buttons (left and right). None of these buttons are working. My technician said that he cannot do anything about it as the switches are doing the contact. He told me that its a software problem and that i should do patching.. I googled it but i couldnt find anything about it. Can you please help me ? It is quite urgent as i need the controller to work 100% in a week's time. Thanks