Well, that situation was something I was thinking about when searching for used device... I mean most of sellers (and buyers) do not know that If the procedure is not right before disconnecting device from donor vehicle device is just a piece of useless garbage. But question is what to do... Try to enter in developer mode and pres "virginise"?
2016 White 1.6 dCi 4WD BOSE with Premium Techno Pack, Winter Pack, Panoramic glass roof & autodipp mirror and retractable towbar.
Added ambient illumination, few chrome trims,
Replaced R-Link2 V2.2 SW version 9. 0.34.611, enabled Android Auto and CarPlay (change USB slots)
Maps: Here 2022Q2