How to Unlock Huawei 3G Modem E173, E1550 and E1750? Like zte, micromax Huawei is the leading manufacturer of 3G Modem as we all know. Before starting the unlocking process of Huawei Modems, there are few things which you should know. First, make sure that your data card is detected in your desktop / laptop / PC and you should know your IMEI number (IMEI number is a 15 digit number printed on the device). To know the 15 digit IMEI of your modem, see the back side of the modem.
Universal master code calculator
Universal master code calculator

How to unlock your Huawei E173, E1750 or E1550 data card :

1. Download Universal Master Code.exe from the download link which is provided at the end of the article. Enter your 15 Digit IMEI number in Huawei tab, as shown in the below screen and press Calculate for Unlock Code and Flash Code.

2. Plug your data card with an unaccepted SIM to your PC.

3. For E173, It will prompt for an unlock code, just enter the Unlock Code you got from Universal Master Code.exe. (Your Huawei E173 modem is now unlocked and can be used with any another SIM after creating the profile).

Note : But, E1750 and E1550 modems does not prompt for unlock code, hence, you have to download   HUAWEI_MODEM_Code_Writer.zip from the below link and continue to step 4.

4. Extract the zip file and run HUAWEI_MODEM_Code_Writer.exe
Huawei modem code writer by segamaster
5. Press ” Please select Com Port “
Select com port - Huawei modem code writer by segamaster

6. Press ” Detect” and choose your modem type in dropdown list. Then press ” Accept”.

7. Press ” Unlock Modem “, a pop up window will appear asking you to enter the Unlock Code.

8. Enter the Unlock code from Universal Master Code in the field provided and click ” OK “.

9. Press ” Unlock Modem ” (Your Huawei modem E1750 or E1550 is now unlocked and can be used with any another SIM after creating a new profile).

Note : The above guide cannot be applied with Customized Firmware modem, to unlock customised firmware you need to flash the modem first, then it will accept the unlock code.

72 COMMENTS

  1. dear please unlock the modem

    Device name: E303

    Application port: COM4

    Serial number: U9C7SA9311514907

    IMEI: 868988016912427

    Hardware Version: CH2E303SM

    Firmware Version: 21.157.41.00.864

    Software Version: 23.003.07.01.661

  2. I havea vodafone modem, the model is k3770 Huawei (the IMEI is: 860030015120815) I used the Universal Master Code and it said that the
    code is: 40167157 but the Data Card Unlock Tool said it’s NOT correct!! Please help with it. Thanks so much again and hope to hear from you asap
    as I don’t have internet at home because of that. Also how can I get the Huawei original dashboard for this model and E1550? Thanks again!

  3. I wanna unlock my Airtel E173bu-1 Data card
    I have updated my device firmware version from 11.126.29.00.284 to 11.126.29.01.284.
    it did not ask for unlock code So I used Code Writer but it shows error plz help me asap.

  4. hello my friend,

    Dados do dispositivo:
    N.º de série do dispositivo (IMEI): 355518064726831
    Nome do produto: Vodafone R216-Z
    N.º de série do SIM (ICCID): 89351060000618959686

  5. Hi Kamlesh,

    tried this method. However when i reached step 5 “Please select com port” there was nothing listed in the drop down menu. It was blank. I am using a E5330 locked to Ooredoo Maldives. Also using Windows 10 on the laptop. Can you please guide me on how i can proceed further.

    Regards
    Amit

  6. Hi Kamlesh,

    Tried this method. Reached step 5 “Select com port”. However when i go to step 6, and click on detect, there is nothing listed in the drop down menu. I am using Huawei, E5330 locked to Ooredoo Maldives. and using Windows 10 on my laptop. Can you please guide me further on this. Thanks!

  7. disculpa zte wp 626 353363015324663 Movistar
    zte wp 659 869606016070215 Movistar

    Argentina , Gracias por la ayuda ante mano

  8. ZTE wp 626 Imei 353363015324663 Movistar
    ZTE wp 659 Imei 869606016070215 Movistar

    Gracias de ante mano por la ayuda

  9. Can you please help to unlock my ZTE – MF90+

    IMEI 868527023488888

    Software Version WEB_H3GATMF90PLUSV1.0.0B03
    Firmware Version BD_H3GMF90PLUSV1.0.0B03
    Hardware Version MF90PLUS1.0.0

  10. Hello, Kindly assist me to unlock my HUAWEI E5573s-606
    IMEI: 866079020391543
    IMSI : 621245010211335
    Hardware version: CL1E5573SM
    Software version: 21.200.11.01.1158
    Web UI version: 17.100.11.01.1158

    Thanks for your help. Regards

  11. Hello Sir, kindly assist to unlock this device.
    Device name: E5573s-606
    IMEI: 866079020391543
    IMSI : 621245010211335
    Hardware version: CL1E5573SM
    Software version: 21.200.11.01.1158
    Web UI version: 17.100.11.01.1158

    Thanks for your help

  12. Could you assist to unlock this ZTE smart phone.
    Model: Z932L
    IMEI: 990005150331420

    Thanks in advanced for fast reply.

  13. Could you assist to unlock this huawei modem.
    Model: e5573
    IMEI: 866079021040602

    Thanks in anticipation for reply.

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