With the latest update on VW IMMO4 dashboard, Xhorse MQB48 License allows user to read/ write NEC35XX immo data from 4th-generation VW.
Here is a review: read Vento immo data with key too plus ok.
VW Vento 2016 4th IMMO system
Connect to dashboard chip and cut pin.
Key Tool Plus is calculating immo data, in this case synchronization file is not required.
Credit to Ivan Tellez.