The Pinpoint GADARHS in my Chelton recently stopped working. When I returned it to Cobham for repair, I also requested the hardware and software for an update to Version 7 in the Chelton. But when Cobham sent the repaired GADAHRS and the Version 7 to an authorized avionics shop for installation, the system would not work.
Fortunately, I live very close to Cobham, which is based in Mineral Wells, TX. The folks there invited me to bring my plane to them for the installation. After lots of troubleshooting, Cobham's Keith Bone determined that the Pinpoint GADAHRS is incompatible with Version 7. Cobham is working on a software fix and in the meantime reinstalled Version 6, so that I now have a fully functioning system, and will return the plane for the revised Version 7 when it is ready.
Cobham's Keith Bone, Robert Durall and Chad Howard could not have been more helpful. They spent a lot of time and effort getting to the bottom of the problem, and I'm sure will devise a good final fix.