Ive just recieved a RNS510 B Revision so an older unit, which has x2 problems, 1st the touchscreen isn't functioning, not sure if this has just failed or if the previous owner has attempted firmware update and failed, and second problem is that the h/drive is not seemingly being recognised, Ive used MRM 7.18 and can access all its functions, but in factory info on MRM718Profi readout everything shows fine, except the h/drive, it gives hard drive firmware err, and h/drive model err, this is with stock h/drive, and ive also tried another pata ide h/drive from a toughbook, which was formatted and no partitions, is there anything that would stop the system seeing the drive? and im assuming that because of the h/drive not being visible to the system I cant get firmware to load? Bad mainboard? how can I troubleshoot to find the issue? any advice would be great