Default Baseband Version Unknown

So I recently bought a phone off of Kiijiji,... yeah I know bad idea don't get me started
I did a lot of searching and the phone is unlocked but will not connect to my providers network, telus, and I am using their network mode, WCDMA.
Now I have a feeling that the problem lies in the Baseband version. I did a google search on it but it came up with only 2 results. One being a random forum talking about how to root a Chinese phone so I assumed the phone itself was from China (a counterfeit or not) either way all the phones that come from China have dual sim, which mine does not.

This brings me to my question, does anyone know where or what the baseband model G900ZCUBMI3 is ?