Want to start the modem application (Optus Mobile Broadband)? It's easy, but remember you need to install the modem.
Connect your modem to your computer's USB port.
The modem application is started. If required, key in your PIN and click OK.
If an incorrect PIN is entered three times in a row, your SIM will be blocked. To unblock your SIM, you'll need to key in your PUK. The PUK can be obtained by contacting Customer Service. Please note: If an incorrect PUK is entered ten times in a row, your SIM is blocked permanently. In this case, you'll need a new SIM from Optus.