We have several problems making functioning the 3G module, we download the drivers from http://nuedc.sjtu.edu.cn/EN/show.aspx?info_lb=30&info_id=87&flag=26 and for the 3G module they are 3 folders, part 1 and part2 are the same application and resolve code error number 10: Can not find the port
The third folder has a program to choose the mobile phone carrier but characters don’t seem to have any sense. The language don’t seem to be the problem since English and Chinese languages display the same characters.
Huawei page don’t have a driver version for this module (consumer.huawei.com/en/solutions/m2m-solutions/products/tech-specs/em820w-en.htm). The Firmware Upgrade Guide on Windows only explain success procedures. We are using Windows 8.1 as Operating System.