Arduino+Easy VR 2.0( couldn't find the device in com port)

hi everyone,

I am trying to do Speech recognition house automation project,for that i am using Easy VR 2.0 module(not shield),when i was trying to test or program Easy VR module with pc. i used arduino in adapter mode to connect easy VR to Computer(RESET to GND;ETX to Arduino receiver ;ERX to arduino transmitter ) after installing Easy VR commander and the arduino libraries ,i was trying to connect my Easy Vr2.0 module in Computer,i selected the right port (COM5 arduino port)

When i click connect after a while it shows “Couldn’t find the connected device in COM port”

Do i need to update the firmware or What should i do to find Easy VR in COMPUTER ?

Please guide me some basics to connect the Easy VR to PC using arduino

I am desperately waiting for your help as reply

Thanks in advance