If following the included directions didn't work (or you're not really very tech oriented), maybe get someone else you know to have a look and see if they can get it working.
Other than that, your best bet would be to contact the seller for guidance or return it and try something else.
My CarLinkit connected super easy on my Seltos SX, just following the included directions.
Make sure you are plugging it in to the correct (always on) USB port closer to the driver side. The one closest to the passenger side (Assuming you are Left hand drive where you are) is NOT the radio connection port.
PS, welcome to the forum
Other than that, your best bet would be to contact the seller for guidance or return it and try something else.
My CarLinkit connected super easy on my Seltos SX, just following the included directions.
Make sure you are plugging it in to the correct (always on) USB port closer to the driver side. The one closest to the passenger side (Assuming you are Left hand drive where you are) is NOT the radio connection port.
PS, welcome to the forum