Adding Devices

[Firewater]

I completed the MFD updates and the SR150 still does not show up on my device list. I had a Raymarine tech look at it and he said he would have to take the unit and hook it up to older versions on another MFD in order to update the SR150 software he tried this going back to versions 6.00 but was still unable to update the SR150. He said the only fix is to send the unit back in, do you any other options? Would a new unit off the shelve have the updated software? Pease advise.