Modem Unlock Solution
As zte, micromax is the famous brand for modem, huawei is also a leading brand. Many sim / network providers is using huawei modem for his network. After idea, vodafone, aircel now Bharti airtel has also come with E1731 with customized firmware and its firmware version number is  11.126.16.04.284 and software version is 16.001.06.07.254 Fakiro . When you will open the cover and see then there E173Bu-1 will be written and it comes with customized firmware. But, the problem is that it is locked and can not be used with other network provider sim. I will guide you to unlock your new Airtel E1731 with the help of the firmware update.
Step by step guide to unlock  HUAWEI AIRTEL E1731 E173bu-1 CUSTOMIZED FIRMWARE TOTALLY FREE :

  1. Download Universal Master Code Calculator software and firmware upgrade of E1731 (E173Bu-1) modem dongle from the download link which is provided at the end of the article.
  2. Now run Universal master code tool and generate unlock code and flash code of your IMEI.
  3. Now plug your device to your PC / laptop / Desktop and let it launch the software of modem.
  4. Now close the running software / mobile partner of the software and run firmware update E173Update_11.126.85.00.114_B427.exe.
  5. Now its will find your modem automatically.
  6. Click on next and when it ask you for password put flash code as your password which you had generated earlier.
  7. After a few seconds your modem will be updated with unlocked firmware.
Now update the modem with latest Huawei Mobile Partner Software from this link.

Now after fully updated your dongle, unplug and plug your modem with another than default sim (other than Airtel sim) in your computer / laptop. Now your dongle / modem will ask you unlock code / password. Put the unlock code as password which you had generated earlier and your  Airtel E1731 (E173Bu-1) Huawei Customised Firmware Modem Dongle is unlocked forever. 
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Update : If above mentioned firmware does not ask for password or unlock code the you download this firmware (Firmware Version is E1731Update_11.126.15.00.00.B416). It will work 100% for you.

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16 thoughts on “UNLOCK HUAWEI AIRTEL E1731 E173bu-1 CUSTOMIZED FIRMWARE SOLUTION FREE

  • February 4, 2013 at 6:43 pm
    Permalink

    The best way to unlock ur huawei e173Bu-1 modem is just to download the latest mobile partner and use it. The process is: 1st uninstall the dialing software provided with ur modem from ur pc (i mean Airtel for ex.)Plug ur modem.Download the software and install it. It will do every thing automatically. At last u would see that ur modem would have installing software with name mobile partner instead of the previous. To check that ur dongle is unlocked or not check it with DC unlocker. link for mobile partner:http://adf.ly/DI0Fs or http://www.unlockurdevice.blogspot.in/2012/09/mobile-partner-indian-version.html and link for dc unlocker: https://www.dc-unlocker.com/download/soft.php?file=ioWat55F

    Reply
    • December 31, 2013 at 9:38 am
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      The links are not working! Please check. Also, I have tried various solutions for E173Bu-1 with IMEI in 8685* series but none of them worked.

      Reply
      • December 31, 2013 at 8:47 pm
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        Both firmware download link is working fine, but above mentioned firmware will not work with 86 series IMEI. I have no another firmware which i can suggest you.

        Reply
  • February 15, 2013 at 2:01 pm
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    Dear Sr,
    My customised airtel huawei 173Bu-1 name as 3G 1731 has existing Firmware version;..11.126.29.00.284 and non of your firmwares suggested here worked, aprompt comes ‘update not pssible being incompatible to existing ver.’
    suggest any other solution,
    thanks.
    sskalra

    Reply
  • February 15, 2013 at 2:05 pm
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    It works with old airtel huawei E173bu-1. Now i think your Airtel Huawei E173bu-1 firmware is of Jun 2012, and it will not work on your latest firmware. You have to wait for another firmware. You can leave your modem DC log to get helped.

    Reply
  • March 24, 2013 at 9:18 am
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    hi Sir,,,your firmare update software fails in updating the firmware of my device E173Bu-1

    Reply
    • March 24, 2013 at 10:17 am
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      Above mentioned firmware will not work with new algo modems.

      Reply
  • April 1, 2013 at 9:38 am
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    use mobile partner by huawei…problem solved….100% sure..

    Reply
  • April 30, 2013 at 4:47 pm
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    Sir…
    I got the update error message..
    here is my Modem detail..

    E1731 (e173bu-1)
    DC – Unlocker 2 Client 1.00.1018

    Detecting modem :

    selection :
    manufacturer – Huawei modems
    model – Auto detect (recommended)

    Enabling Huawei modem driver… OK
    Waiting for Huawei modem…

    Found modem : E1731
    Model : Huawei E1731 (Airtel India)
    IMEI : 354369049973093
    Serial NR. : 8CABYA92C2201122
    Firmware : 11.126.29.00.284
    Compile date / time : Aug 13 2012 19:28:09
    Hardware ver. : CD1E153M
    Dashboard version : UTPS23.001.07.06.910_LNX23_myModem.in
    Chipset : Qualcomm MSM6290
    Voice feature : disabled
    SIM Lock status : Locked (customized firmware)
    Wrong codes entered : 10 (unlock attempts left : 0)

    Pls Help me..

    Reply
  • May 7, 2013 at 12:40 am
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    Found modem : E1731
    Model : Huawei E1731 (Airtel India)
    IMEI : 868510011154100
    Dashboard ver:29.009.05.01.284
    Firmware : 11.126.29.00.284
    Voice feature : disabled
    SIM Lock status : Locked (customized firmware)
    Wrong codes entered : 10 (unlock attempts left : 0)
    i tried ur procedure but it failed pls help

    Reply
  • May 24, 2013 at 12:26 pm
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    these people have copy pasted somebody’s work… they know shit!!1

    Reply
    • May 25, 2013 at 12:18 am
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      Don’t promote yourself at here. You don’t ABCD about modem unlocking and starts talking.

      Reply
  • December 25, 2013 at 7:18 am
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    thanks for helping me

    Reply
  • December 26, 2013 at 3:01 pm
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    i think that this method will not work
    but i also think that it will work

    my dongle cant be unlocked
    better contact me
    i will surely help you

    Reply

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