I own golf gti mk7 2014 ROW with engine code:CHHB
and today I just upgraded my infotainment system from MIB1 unit with 6.5 inch screen to a MIB2 unit with 8 inch screen, and this is the part No. 3G0035043

(All equipments are OEM)

But when I try connecting to vcds 5F controller, it's says (no response from controller) BTW all other controllers work fine.

What should I do to fix this??

See the AutoScan: