I have a strange problem with my Shruthi XT. I build it like 1,5 year ago and it was functioning fine. Yesterday i decided to glue the push buttons and discovered that one of these buttons wasn’t soldered properly. So I decided to take it apart and solder the pushbutton. I also added some solder to some knob solder points. This was all that I did. I re-assembled the unit and it didn’t work anymore. Black display and some random leds lit up. I couldn’t do anything. Now I checked the voltages on the filter board and the control board and these seem all ok. I really don’t know what to do with it. Is it possible that the ATMega chip is broken? Or the LCD? Looking forward to some help. Kind regards, Jules.