The intaller does not overwrite a newer NAVDATA cycle, if applicable . i PURCHASE 757/767 last night installation went smooth all looks ok only data in FMC not updating to newest AIRAC showil al lthe time old DATA from 2017 please if someone can HELP me i was told to send new Airac to Cap Sim Navigatin no luck FMC is still old  nothing chages here are few pictures to show .

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