I’ve been trying to get my USB Broadband Modem to work with Leopard for the past few days. Unfortunately the instructions that come with the modem  are out-of-date and don’t work.

So here are the steps to get the modem working:

1. Ignore the instructions that come with the modem

2. Download the drivers from here (updated link – drivers now hosted here) and install them onto your Mac. Make sure you install the second file in the zip. The first doesn’t work!

3. Plug the modem into your Mac’s USB port and wait until the modem stops flashing green.

4. Open up “Network Preferences” and click the “+” sign in the bottom left of the screen to add a new service:

5. Select the HUAWEI Mobile from the interface list and then give your Service a name:

6. Now setup your service by entering a telephone number of *99#Account Name is ppp@A1plus.at and Password is ppp. Then click the Advanced button:

7. In the Advanced window select Generic as the vendor then GPRS (GSM/3G) as the model. Enter your APN for your provider (for a1 it is a1.net) and leave CID as 1.

8. Click Apply and then click the Connect button back on the Network Preferences window, and you should connect as below:

have phun…g.

i found the sourcearticle on http://blog.evandavey.com/2008/02/how-to-connect-huawei-e220-usb-modem.html