I have an older version of DCS which is 4.02. I would like to know if I bought the cables to up date this from MTH's web site can it go from 4.02 straight to 4.30? My local hobby shop said that they can up date it for free but I would like to try this myself so I know how to do it. Would it be better to let them do this the first time and then up date regularly to stay current or is this something that I can handle?
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