Hello vega4ref,
as far as I remember I had the white screen as well when I compiles the original Arduino Code with the TFT 2.0. So u need the new libraries. Did you changed in teh code " Tft.TFTinit(); " to
" // Tft.init(); " (without the ") ? maybe search for the string Tft.init() all over the code and replace with " Tft.TFTinit(); "
What error messages do you receive?