Huawei has released E5372s-32 MiFi WiFi router, which comes in Indonesia locked to Bolt carrier. It comes with customized firmware and does not accept the unlock code / NCK. The only solution is that flash the device with un-customized firmware and then only you can unlock E5372.

DC unlocker has created a software, calls it Huawei E5372 Bolt Unlocker v4, can be used to unlock customized E5372s-32 Bolt MiFi WiFi router. But, he charges 7 EURO for unlocking of one device. I have already tried with all available firmware of Huawei E5372, but no success in flashing the device.

Finally, I got the E5372_Update_21. (Bolt E5372s-32 Downgrader), that flashed the device successfully and in the firmware upgrade process only, it got unlocked too.

In any case, firmware update gets failed, then use Huawei R215 – E5372 flasher tool to repair bricked E5372.

How to Unlock Customized Huawei E5372s-32 Bolt MiFi WiFi Router of Indonesia ?

1. Download the E5372 downgrade firmware from the link which is provided at the end of the article.

2. Connect device to Windows PC with USB cable.

3. Disconnect internet, close any running software and web browser.

4. Run the firmware update tool.

5. It will ask you password, use firmware code as password (If you don’t have firmware update code then comment below with model and IMEI to get it free).

6. Wait till finish the firmware update.

7. During the firmware update, your Huawei E5372s-32 Bolt MiFi WiFi device of Indonesia will be unlocked.

Note: Don’t try this procedure with any another device, it may brick your MiFi. Some users say that it does not work with 4G Bolt network. So, do at your own risk.

It should work with firmware version (Build Mar 15 2015, 10:52:54) and too, if not then let me know.

Download Firmware Update E5372_21. (Bolt E5372s-32 downgrader)


        • Tried doing as per instructions. The update wizard program detected the device and then shows updating. In few minutes the Bolt device was rebooted and it showed an Up Arrow with a msg “Do not power off” since last 15 mins. However the Update wizard suddenly gave a message “Error Code 17, The wireless terminal inserted is not E5372, Update Wizard can’t continue”. The device is Huawei E5372 for sure and is still showing the Up arrow with the msg…no changes. Please help!

  1. need unlock code
    MODEL: E5372s
    Hardware version: CL1E5372SM06
    Software version:
    Web UI version:
    plz help me

  2. it is already disable and the problem still there

    if u have e-mail please to send you a screen shot of this error.


  3. imei: 860650029034817
    i tried this password 48324206 but not working, the current firmware is:
    Please help to unlock – sim lock

  4. Hi kumar, could you help me ? i need firmware code for my device. Big thanks
    Device name: E5372s
    IMEI: 863959024368***
    Software version:

  5. dear brother,
    dear need me a help, regarding Huawei modem Zain Saudi arabia, E5372s, it is 4G modem 4G is working with zain sim, but STC sim card 3G working how i can update to work 4G with STC sim card.

    Model : Huawei E5372s
    IMEI : 864578017222316
    Serial NR. : N7GDW14A31003639
    Firmware :
    Compile date / time : Mar 27 2014 15:35:09
    Hardware ver. : CL1E5372SM
    Dashboard version : WEBUI_15.

  6. Found modem : Airbox
    Model : Orange Airbox (Huawei E5372)
    IMEI : 862598022202139
    Serial NR. : L8PDW14227000508
    Firmware :

    firmware code?

  7. Sir, I am looking for a code for IMEI 862557020221814. Its for E5372s-22, from 3 Sweden, the GUI has no option to unlock the modem and I’m trying to flash it using the Bolt E5372s-32 Downgrader. Thanks!

  8. I’m back,

    I had a fully fonctionnal unbranded and unlocked E5372s-32 that i wanted to update. I’ve downloaded and install the firmware for bolt, now it’s not working anymore. I tried to
    – Flash with the previous firmware -> I have an “error 17 the device is not a E5372”
    – Tried this flash solution but the port com ain’t detected. Course I tried the solution provided, but Huawei HiSilicon Firmware Writer ask for loging and password i don’t have.
    – Tried also this solution but the com port is not detected either.

    Can you help me?

    Found modem : E5372
    Model : Huawei E5372 / MegaFon MR100-3
    IMEI : 860650027960294
    Serial NR. : N7GDW14507002311
    Firmware :
    Compile date / time : Mar 27 2014 15:35:09
    Hardware ver. : CL1E5372SM
    Dashboard version : WEBUI_17.
    SIM Lock status : Locked (Card lock)
    Wrong codes entered : 10 (unlock attempts left : 0)

  9. Sir I also need to unlock my Wi-Fi router its bolt indonesia customized Huawei E5372s the imei number is 863959023177671.will appreciate if you give me the firmware code .

  10. IMEI:864578019430644
    from: saudi araba
    HUAWEI M0bile WiFi
    Model : E5372s-32
    my router want accent code what is that i dont know plz help mi i am in now nepal

  11. Pls help i have Huawei E5372_32
    imei 860650024755028
    Viva kuwait network ..
    It says simlock if i use any Indian sim.. pls unlock to unlock?


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