ELM327 OBD2 Not connecting

[nicollim]

I recently bought a china OBD2 and try to plug in, and pairing with code 1234 successfully to my samsung gelaxy 4 but when I try to open the Torque apps, it keep saying adapter not found, device not found and also "connecting to OBD via bluetooth fail" keep trying reconnecting but still cant.
Anyway can guide me to connect it? I am driving a honda stream 2.0 (2004).

 

[g88]

first of all is the OBD2 compatible to your car

 

[Waiora_ProTuner]

i believe its not compatible with your car...

that error msg...everytime..
your phone connected to OBD reader...but that reader cant read you ecu...

 

[nicollim]

How can i know whether it is compatible or not? How to find out?