From here you can download CardLock Unlock Tool for Huawei Modem. It is 23 KB in size.

Languages: English
Author: Kamlesh Kumar
Platforms: Windows 8
Category: Huawei
License: Freeware
Date: December 13, 2013

CardLock Unlock Tool
CardLock Unlock Tool

Disclaimer : Administration of routerunlock shall not be liable in case of unknowing change of the firmware of your modem / router / MiFi. Moreover, if you want any specific firmware of related to Huawei dongle / Pocket MiFi, then leave a comment, if it will be available then will be published. All the firmware which are posted at routerunlock, are free of cost and there is no need to pay anyone.