Registered User Joined May 2013 66 Posts so this is where I am: dead in the water recap: Phantom was working perfectly. Zenmuse arrived performed soldering and connections per instructions upgraded to latest firmware after doing that my Transmitter and my Phantom have lost connection completely. I got some message warning that such an error could happen and saying that I could recalibrate. (or that I needed to reboot which I assume it means I need to restart everything which I have done, to no effect, numerous times). Problem is that calibration isn't even an option. The Tx is just not communicating at all with the Phantom. Any hints? Has anyone posted the A to Z of installing a Zenmuse for the GoPro to your Phantom that includes both all hardware and software processes? Much appreciated! in Costa Rica Fernando PS: can I bribe anyone to help me with this in exchange for a place to stay on the beaches of Costa Rica?