How to connect with a Qualcomm/Huawei 3g modem

Network Manager and Sakis3G don't really work well together. Sometimes you need to run Sakis3g twice or remove and plug the device back in to get it to work. This is because ModemManager can be quite forceful by locking device ports. Alternatively, you can switch the device using Sakis3G (at which point Network Manager should pick it up) and then connecting using Network Manager.

As for the pin - either remove the required pin from the sim card by putting it in a normal mobile phone or provide your pin for switching in /etc/sakis3g.conf using the SIM_PIN="" variable.

Reference: http://web.archive.org/web/20120908202215/http://wiki.sakis3g.org/wiki/index.php?title=Sakis3G_configuration#SIM_PIN