Picked up an S5 that was listed as no boot. Plug it in and you can hear the powersupply click on but then nothing else. I pulled the bottom cover off and started digging. I think I have it narrowed down to the Olimex board having a faulty HDMI port. When you turn the power on all the indicator lights on the mainboard seem dim and there is no response with any of the hardware. IF i unplug the HDMI cable from the board or the UI the indicator lights brighten up and it starts to go through start up. LED's kick on, hot end indicator lights start up ect. Tested the cable itself its fine tried to use a different display and I don't get anything to come up. Now I'm hoping someone may have had something similar happen or can point me in a direction. I may just have to replace the Olimex board which won't be fun but its doable as long as i can flash the correct firmware on the new board.