How to Unlock Huawei E3231 Three UK Modem?
1. Download Huawei E3231 Three UK modem unlocker software from the link which is provided at the end of the article.
2. Now disconnect the internet and change the default SIM with any other network provider SIM card (another than H3G in H3G E3131 modem).
3. Connect the modem to PC or laptop.
4. Now let it launch the software of the modem.
5. Now close the software of modem (Huawei Mobile Partner software of H3G brand).
6. Run the downloaded unlocker software.
7. Detect the dongle under it and when it will show the IMEI of your device then put 8-digit unlock code in “Unlock Code(6-8 digits):” box and click on OK button.
8. Once the code is accepted, your modem will be unlocked forever.
Note: Don’t use any free or wrong codes into Huawei E3231 Three U.K. data card, otherwise it will be locked permanently.
After unlock change the dashboard with latest Huawei mobile partner to create network profile as per your network provider sim (only for non-hilink dongle).
Users who want to download the E3231 firmware of Huawei modem can visit this section.
(CardLock Unlock Tool)