Today, I am writing for Huawei E3331 4G USB modem unlocking. Recently I have provided the article to unlock H3G Tre Italy E3131 (E3131S-2) dongle. Unlocking of Huawei E3331 4G USB  Data Card is also the same process. HUAWEI E3331 4G USB Modem Data Card also comes uncustomized firmware and can be unlocked easily.
Huawei E3331 Modem
Huawei E3331 Modem

How to unlock Huawei E3331 4G USB Modem?

1. Download Huawei E3331 4G USB modem unlocker software from the download link which is provided at the end of the article.

2. Now disconnect the internet and change the default SIM with another network provider SIM card (another than default network SIM in Huawei E3331).

3. Now connect the modem to PC or laptop.

4. Let it launch the software of the modem.

5. Now close the software of modem (Branded Huawei Mobile Partner software).

6. Now run the downloaded Huawei E3331 4G USB dongle unlocker software.

7. Detect the Huawei E3331 4G USB modem into the downloaded software.

8. Now put 8 digits unlock code in “Unlock Code(6-8 digits):” box and click on OK button.

9. Now your modem is unlocked forever.

Note: Don’t use any wrong codes into Huawei E3331 4G USB modem, otherwise it will be locked permanently. Either purchase through any server or place an order at routerunlock.com.

Download Huawei E3331 4G USB Modem unlocker software

Order Unlock Code of Huawei E3331

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