This is step by step how to unlock Huawei modem E173, E1752C, E3131, or E355 of O2 locked network. Follow this instruction :
- Download O2 Broadband Unlcok.exe HERE
- Plug your modem to your PC using default USB cable
- If your modem already connected to internet, do disconnect your internet modem
- Now close all running software related to O2 or Huawei
- Run O2 Broadband Unlock software
- This software will detect your modem and show your data card 15 digit IMEI
- Put 8 digit correct unlock code and click OK.
- You will see "card unlock succes"
- Enjoy it
