I've perfectly understood that ttgo.bif and a correct meta are the simple basic needs for activation, that was why i looked around and around to find out my mistake in a lot of forum pages, FAQ (here and everywhere else) BUT i made no mistake:
I tried the ttgo.bif saved before update (created under navcore 8.xx) that i used to activate an old map using fastactivate but this also fails in and out of the gps,
I've also tried to double check the map meta in others forums, tried to rewrite many time the meta.txt in different way, with and without ";" comments before, after, in line, without comments , from fastactivate updated_meta.txt, with the one i need on top or at the end of the file,
I tried to recreate the ttgo.bif many times changing some infos inside to reproduce the old ttgo.bif i had .
I tried with and without antivirus,
I tried several map thinking some .meta file were corrupted
I've made a format of the GPS reinstalling all the stuff using TomtomHOME to have proper files,
I've followed several FAQ method given at http://www.navitotal.com/tutorials-f80/freshly-installed-map-not-working-t13390.html ,
so i've well RTFM before any complains like "that don't work" etc...
I'm not a newbie at this sport so i can ensure you THERE IS a trouble with fastactivate on MY system/gps at least, so i've shared my experience to ease others, less qualified or simply can't understand why it don't work, to think about another solution.
In all i could read, I saw here a dct error post (http://www.navitotal.com/navcores-9-for-tomtom-devices-f124/dct-error-t15020-15.html) where the trouble came from the OS (windows 8 for him) . I'm under Windows 7 64bits, maybe that could come from there, i don't know...(but i tried also compatibility mode for fastactivate as XP/vista but didn't worked neither)
Sorry for the external link but i tried to find an activator here and didn't find it
due to many internal forum broken links leading to "the page doesn't exist anymore" or something like that...and i can't use url bbcodes in my posts
By the way thanks for the work performed to get all the stuff and support you all give!
cheers