Many broadband users usually buy ZTE modems with internet data packages from various network operators such as T-mobile, Three, Orange and Verizon for connecting to the internet. However, most of the mobile network companies lock their modems to avoid using with another network companies. Therefore, most of the people need to unlock their modems for using with other networks. In this article, I will discuss about unlocking ZTE HSDPA modems. Here, I used dccrap in this unlocking process so that before you connect the modem to the USB, you need to put an invalid operator SIM Card. Hence, the software can identify your modem for unlocking. Let's see how to do this process step by step. You can get unlocking software from the below links.