GM MDI GDS2 software do not need activation. GM MDI GDS2 GM MDI gds tech 2 win software Sata HDD for Vauxhall Opel/Buick and Chevrolet. GM MDI GDS2 GM MDI gds tech 2 win software work on win 7 system.
GM MDI Diagnostic Scanner supports both Tech2 and GDS software, also can supports online programming but it needs customer have online account. This MDI does not support wifi, it can use USB connection. All chips are original and new.