I have acquired a KRP600M that had a fault (exact details unknown). The M01 was completely stripped down and was not supplied with a system cable. After rebuilding the M01 and connecting using a displayport cable from my laptop I get a red and blue square on the display alternating 10 times at about 1 second interval with the same on the display LED's. After 10 cycles the screen squares disappear and the LED's stay flashing red then blue continuously. My challenge is to bring it back to life! The troubleshooting guide points towards a system connection problem, stating to replace the system cable. Now I've seen some posts that say a v1.1 displayport or later is compatible and others that say there are differences to the genuine pio version, so this has gotta be my first check to make. Does anyone have a definitive answer on the compatibility of displayport cables? Note, I also tried plugging my laptop direct to the 600A but did not expect it to work. My laptop knew that there was a device connected but nothing was displayed - I believe that this is as would be expected, but is there a method to test the 600A without the M01?