I am wondering how I can use my mobile phone via USB to connect to my macbook and use the internet. Basically use the phone as a modem.

is there any special dial codes, APN, or username/password?

The tether via mobile AP works no problems. Just turn it on and instant hotspot. But the USB tethering options. I check the box, and then on the macbook, i get a popup that "an device is not configured....would you like to configure device?"

Thanks for the help.

edit: basically I want to do something similar to this thread. . And it seems so far from another forum, they recommended sticking with mobile AP (wifi hotspot) and then use USB for charging the phone, lol.

http://www.youtube.com/watch?v=yR9GANNKUgo

Not sure if this is what you are looking for , I have a ZTE Blade mobile phone running Android 2.3.4 , and have a AIS 3G SIM , I connect my iMac to the internet via a USB cable from my Blade phone , using this app -

Android Market Link

There is a free version of this app , which Ive not tried ---

Free Version of app

All I do is just plug the USB cable into my iMac and the app does the rest , it works very well