How to Change the MAC Address of Huawei BM622 WiMAX Modem

The Huawei Echolife BM622, BM621 and BM625 modems are wireless mobile modems that can be carried anywhere and can instantly connect to the internet as long as it can be reached or can pick-up signal from the towers of its Internet Service Provider. It uses WiMax 4G data transmission and provides a fast internet connection of up to 15 Mbps.
(Re-uploaded on June 12, 2013. Previously uploaded on January 2012. Accidentally deleted on June June 12, 2013 because of changing Youtube account settings.)