Some user feedback that OBDSTAR F108 pin code tool & key programmer only supports post-2008 PSA Peugeot Citroen DS cars with CAN BUS protocol when it first rolled out in the market.
OBDSTAR F108+ is the F108 upgrade with both K-line for older cars and CANBUS for newer cars.
Add some component on the main card/PCB.
see picture below:
F108+ support PSA group car model list: