The recommended OBD bluetooth adapter for Soul EV Spy is now "VGate iCar Pro BT4.0".
The previously recommended OBD bluetooth adapter is no longer recommended.
Konnwei have modified the KW902 hardware and firmware at least 5 times since it was recommended in 2016, most of the versions not working correctly in some combination of car and phone. It is impossible to tell the different versions by the exterior of the adapter, so when a new user purchase a KW902 today, it is most likely not working correctly. The differences are not possible to compensate in the app software. Consequently, a different OBD bluetooth adapter is now recommended for Soul EV Spy:
VGate iCar Pro BT4.0.
PS: If you have use of the app, please consider giving a positive review, to counter all the negative reviews caused by the incompatible Konnwei adapters:
https://play.google.com/store/apps/details?id=com.evranger.soulspy
Thanks!