Unlocking of Huawei E392-92U modem is supported by unlock code. It comes with un-customized firmware and there is no need to change the software / firmware of the dongle. Once the correct code entered in the data-card, it will be unlocked forever.
How to unlock Huawei E392-92U Modem?
1. Download the Huawei E392-92U dongle unlocking software from the link which is provided at the end of the post.
2. Now disconnect the internet and change the default sim with another network provider sim (another than Etisalat network sim in Etisalat Nigeria locked Huawei E392-92U).
3. Now connect the modem to PC or laptop.
4. Let it launch the software of the modem.
5. It will prompt for unlock code / simlock code.
6. Enter the unlock code and click OK.
7. Now your Huawei E392-92U is unlocked forever.
In case it does not prompt for code,
8. Close the software of modem (branded Huawei Mobile Partner software).
9. Run the downloaded Huawei E392-92U modem unlocker software.
10. Detect the Huawei E392-92U into the downloaded software.
11. Input the 8-digit unlock code in “Unlock Code(6-8 digits):” box and click OK button.
12. Now your modem is unlocked forever.
Note : Don’t use any wrong codes into Huawei E392-92U dongle, otherwise it will be locked permanently.