How to update and clean operator web interface from your Huawei E5330Bs:
Download Files : Firmware Upgrade and Huawei WebUI1. Plug modem to an USB port.
2. Intall drivers from modem.
3. Extract downloaded files.
4. Run as Administrator the firmware downloaded and wait until finish.
5. Next, do the same to Huawei Web Interface.
6. Done, now you have your Huawei modem E5330bs clean and updated, run 192.168.1.1 in browser and configure name and APN settings.