Software updates issues for multiple devices

[bobmackie]

Hello:

The last time (fall 2014) that I did an update on my Raymarine equipment I ran into problems with the EV-1 and the ACU400 not updating. In fact, after that attempt the system did not even "see" them. I ended up having to send the units to Raymarine for updating. Was not a big problem then, I was in Hampton VA.

I am now in Panama getting ready to cross the Pacific. I just installed 2 new i70s displays and I would like to update my Autopilot to the latest software. I understand that the EV-1 needs to be updated first and that the MFD will do the update in-turn. After reading some comments in the forum I see that there can still be an issue when updating with multiple NG devices and that if the "normal" update procedure does not work it is recommended to "unplug" the Spur cables to devices not being updated.

I am wondering if I should start out do that to begin with? (or is there a better method) And if I do, in what order should I do the updates? Should I turn the "slave" MFDs off during the procedure as well?

Again, I am in Panama (living aboard) so it is not an easy (or cheap) task to return the units to Raymarine for upgrades.

Any suggestions? I have copied you on the equipment that we have on board as well as the software versions for each. The big thing I want is the upgraded software for the ACU400.

Thanks,

Bob