Plug your Huawei modem directly into a motherboard USB port (avoid USB hubs).
If your modem does not automatically ask for the code, you may need to enter the code via an AT Command or by using a modem terminal emulator tool. huawei modem unlocker v577 by hot patched
Comprehensive Guide to Huawei Modem Unlocker V577 by Patched Lifestyle & Entertainment Plug your Huawei modem directly into a motherboard