Huawei E3276 4G LTE modem is very popular worldwide for its features. Recently Airtel in India has also launched the Huawei E3276s-920 LTE 4G dongle. It is also known as LTE TDD Multi-mode USB rotator. Before a few days, Airtel has launched customized firmware Airtel E392 Huawei 4G LTE modem also, which can be unlocked. Huawei has launched E3276 comes with different bands in different countries. In India, sub-model E3276s-920 has been launched by Airtel, which comes with firmware version As you might already know, Airtel only introduces the customized firmware modems. Airtel had launched Huawei E173Cs-1 modem with customized firmware, which can be unlocked.

Airtel 4G Lte E3276 Modem
Airtel 4G LTE E3276 Modem

When you will detect your Airtel India Huawei E3276 4G LTE postpaid dongle into the DC unlocker software then you will find the log as mentioned below :

Found modem : B710S0
Model : Huawei E3276
IMEI : 8674***********
Serial NR. : D5WDWB9372924512
Firmware :
Compile date / time : Jun 17 2013 19:52:56
Hardware ver. : CH2E3276SM
Dashboard version : UTPS23.
Chipset : HiSilicon
SIM Lock status : locked
Wrong codes entered : 10 (unlock attempts left : 0)

Don’t worry, your Airtel Huawei E3276 4G LTE postpaid dongle will show wrong codes entered 10 times in DC unlocker because Huawei E3276s-920 (Airtel India) 4G LTE data card has customized firmware and without flashing the firmware it can not be unlocked.

How to unlock Airtel India Huawei E3276 4G LTE Postpaid Data-Card?

1. Download latest Huawei mobile partner software from the link which is provided at the end of the article.

2. Now disconnect from the internet and close the software of the modem.

3. Now run the downloaded Huawei mobile partner software and update the modem with latest Huawei software.

4. Now connect to the internet and download the firmware update for your Airtel India Huawei E3276 4G LTE Postpaid Modem.

5. Now update the firmware of your modem with latest unlocked firmware (refer firmware update guide).

6. Now change the sim with another network provider.

7. Now it will ask you for unlock code.

8. Put unlock code and enjoy.

Note: Don’t put any wrong codes into your modem otherwise it will be locked permanently. Either purchase through any server or pay only Rs. 300 for the correct code. Those users who are not able to update his Airtel modem with latest Huawei mobile partner software can install PC Version Huawei Mobile Partner in his PC.

Download Huawei mobile partner PC Version

Download latest Huawei mobile partner software

Download Firmware update of Airtel India Huawei E3276 4G LTE Postpaid Modem

(Firmware Version: E3276s-152_Update_21.


  1. I got my Airtel E3276 4G LTE dongle unlocked from a local shop though I cant create network profiles with access point settings in software, hence I downloaded the E3276Update_21. firmware from your website but it asks for a password. Please help.

  2. Pls provide unlock and flash code for my data card

    Device : E3276s-920
    IMEI : 867497014461719
    FIRMWARE Version :

    DC unlocker can’t detect my data card when i run it.
    Also i like to know which firmware is suitable for my device.
    Thanks in advance.

  3. Please provide unlock code and flash code (password) for the device below. Thanks in advance.

    Huawei E3276s – 920
    IMEI: 867497014594352

  4. hey i have a airtel 4g dongle..model E3276s-920..i want to unlock it and use reliance jio sim..please email me the instructions and tell me what i have to pay for

  5. Help me with

    Found Phone, Phone Info:
    – Manufacturer :huawei
    – Model :E3131
    – Revision :
    – Phone IMEI :862733012430230

  6. I want to unlock Huawei E3276 which I brought for Airtel 4G LTE. Also I want to know if this device support JIO 4G sim for data use.


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