UNLOCK HUAWEI AIRTEL E1731 E173bu-1 CUSTOMIZED FIRMWARE SOLUTION FREE

UNLOCK HUAWEI AIRTEL E1731 E173bu-1 CUSTOMIZED FIRMWARE SOLUTION FREE - 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.
Universal master code calculator
Universal master code calculator
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. 

Download E173Bu-1 Unlocked Firmware
Universal master code to generate unlock code and flash code

 

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

  1. firmware upgrading process tells like ” the source version isn’t compatible for target version ” and failed updating…
    what to do ?

    Current firmware version : 11.126.29.00.284
    Current Software version : 21.003.27.00.03

    • Hi Kamlesh,

      I have the same as mentioned by Ranjit above.
      model e173Bu-1 and version 11.126.29.00.284.

      as suggested by many i run:
      E173Update_11.126.85.00.114_B427.exe
      but my windows 7 does not find it.

      then i downloaded firmware
      E173Update_11.126.85.00.209_B427.exe

      it accepts flash code but at last upgrade firmware gets failed.

    • You modem firmware is released in Jun 2012 by huawei company and above mentioned firmware will not work on that modem. Wait for another firmware.

  2. i installed the second firmware you mentioned in my huawei e173bu-1 airtel and installation was succesfull
    but when i put an aircel sim and use it .
    It gives the error ‘only specified sim/usim card can be used on the device!’
    .
    give some suggestions how to make it work with aircel sim

    • my imei no : 354369048341490

      Current firmware version : 11.126.29.00.284
      Current Software version : 21.003.27.00.03

      some of my friends told like it having more secure for preventing modem from unlock….

  3. Hi Kamlesh,

    I am using Huwaei E173Bu-1 with firmware-11.126.16.04.284.
    What exactly should I do to unlock it forever to be used with any other SIM/provider?

    Any help is appreciated!

    Regards,
    Abhishek

  4. I too faced same problem ” firmware upgrade failed”

    firmware tried: E173Update_11.126.85.00.114_B427.exe

    E173Update_11.126.85.00.209_B427.exe

    my imei no : 35436*************

    Current firmware version : 11.126.29.00.284

    help!!!!!!!!

    • It will not work with 86 series imei modem, as above mentioned firmware is old algo firmware, 35 series imei modems can be unlocked through above mentioned firmware only.

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

    Found modem : E1731
    Model : Huawei E1731 (Airtel India)
    IMEI : 354369049212203
    Serial NR. : 8CABYA92A2415221
    Firmware : 11.126.29.00.284
    Compile date / time : Aug 13 2012 19:28:09
    Hardware ver. : CD1E153M
    how to unlock please help me this firmware not work

    • Close the everything related to your modem and then start flashing, if still not work then leave comment with error details.

  6. Hi…Kamlesh…
    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)

  7. i kamlesh . this is manikandan . i want unlock Airtel modem e1731E173cs-1 . can i use above you mentioned procedure it ll be work for me or not. And i have another doubt how can i get unlock or password code . manually me only give that(any number) please reply . i ll wait for your Response.

    Thanks
    Manikandan

  8. hello kamlesh, i recently bought new dongle from airtel, wanted to unlock it, as i was told after unlocking u can use any network… and aftr reading ur blog so far there is no solution or no unlockable solution for this device but pls give us the solution as soon as u can and here is my device detail.
    Found modem : E173Bu-1
    Model : Huawei E1731 (Airtel India)
    IMEI : 8586***********
    Firmware : 11.126.29.00.284
    Dashboard version:29.009.05.01.284
    Voice feature : disabled
    SIM Lock status : Locked (customized firmware)
    Wrong codes entered : 10 (unlock attempts left : 0)

  9. 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)

  10. PLs help. how to unlock airtel e173bu-1 with firmware version: 11.126.29.00.284 .above mentioned is not working. it shows different C Version

  11. hi, i followed the step u mention , every thing smooth, but it did not ask me any flash code and what ever. and in the end set up will finished successful. but when i try to use idea sim it give me an error sim is not supported. help please.
    thank you

  12. hi, i followed the step u mention , every thing smooth, but it did not ask me any flash code and what ever. and in the end set up will finished successful. but when i try to use idea sim it give me an error sim is not supported. help please.
    thank you

  13. Found modem : E1731
    Model : Huawei E1731 (Airtel India)
    IMEI : 868510010977550
    Serial NR. : 8CYBYA93201267555
    Firmware : 11.126.29.00.284
    Compile date / time : Aug 13 2012 19:28:09
    Hardware ver. : CD1E153M
    Dashboard version : UTPS21.005.22.04.284_MAC21.005.22.05.284_LNX21.005.22.04.284
    Chipset : Qualcomm MSM6290
    Voice feature : disabled
    SIM Lock status : Locked (customized firmware)
    Wrong codes entered : 10 (unlock attempts left : 0)

    when i update firmware it displys “UPDATE FAIL” PLZ GIVE ME SOLUTION HOW TO UNLOCK THIS MODEM.

  14. I updated firmware properly.. but when i plug in my device it automatically install airtel software in which i cant add new settings i mean new apn in that software.. its showing blank.. cant even click on New and default buttons.. and then i downloaded mobile partner software.. and edited the APN and all.. but its not getiing connected.. :( is there any solution??
    thanks in advance

  15. i am able to unlock 173Bu-1 with the above stepes and using MTNL dolphin 3G connection. can you please guide me how to remove the airtel cd drive which starts the airtel setup each time when i plug the Airtel E173bu-1 to my laptop.

  16. i am able to unlock 173Bu-1 with the above stepes and using MTNL dolphin 3G connection. can you please guide me how to remove the airtel cd drive which starts the airtel setup each time when i plug the Airtel E173bu-1 to my laptop.

  17. Everything done, but signal is not coming. Alarm coming as SIM invalid.

    IMEI 354369044793025

    I inserted the docomo CDMA sim

  18. Hello sir,

    Recently i have purchased airtel E1731(e173bu-1) modem with 86 series IMEI. But i am unable to unlock the modem. It showing the error message as ” 10 wrong cores entered 0 codes remaining . I tried almost but modem not unlocked.

    Pls tell me how to unlock this modem.

  19. firmware version : 11.126.29.00.284
    software version : 21.005.22.04.284
    IMEI 354369048800982

    i tried both the firmwares but shows different c version update failed

    any new firmwares released

  20. I have airtel usb modem of E1731(E173Bu-1) with
    IMEI: 354369048515457
    firmware v 11.126.29.00.284
    I tried to flashing the data card to unlock with some customized firmware which i downloaded from your website…
    After inputing the password, the th process of backup userdata is going well then suddenly the error message i am getting is update failur… please guide me to unlock the modem… please…..

  21. firmware version : 11.126.29.00.284
    software version : 21.005.22.04.284
    IMEI 354369048515457

    i tried both the firmwares but shows different c version update failed or simply update failure…
    Please help me

  22. Device name ; E1731 (airtel -huawei)
    port ; com10
    serial no ; 8CABYA9341528658
    IMEI NO ; 868510012854898
    HARDWARE VER ; CD1E153M
    firmware ver ; 11.126.29.01.284
    software ver ; 16.001.06.01.5oo fakiro
    frd , i know my flash code & unlock code , but used in mobile partner it did not ask any passwords for unlock , it normaly work with default airtel sim only , plz give instructions for my modem to unlock or did i miss upgrade any software to unlock.

  23. DEVICE NAME ; E1731 (airtel-huawei)
    port ; com10
    serial no ; 8CABYA9341528658
    IMEI NO ; 868510012854898
    hardware no ; CD1E153M
    firmware no ; 11.126.29.01.284
    software no ; 16.001.06.01.500 fakiro
    hello frd , i know my flash code & unlock code but currently use mobile partner it did not ask any password for flash or unlock , it work in default sim (airtel) only , when i upgrade my software 16.001 to 21…something i got error , so give instructions to unlock my modem

  24. hello,
    my airtel modem,e173-u has failed to unlock itself after i have tried several times.unlock code times is 10, so 0 is remaining, how should i reset? and i try again?thankyou,
    walter,uganda

  25. Dear sir

    Model: Huawei E173Bu-1 (Airtel)
    IMEI: 868510012896766

    New Algo code: 90567719
    Old Algo code: 6439410
    Flash code: 61150807

    Please advice me how to unlock my USB modem.

    Thank you

  26. Dear kamalesh sir

    Huawei E173Bu-1 (Air tel)
    IME: 868510012896766
    New Algo code: 90567719
    Flash code: 61150807

    Kindly advice me how can unlock my USB modem.

    Thank you for all the supports.

  27. i have airtel(E173Bu-1) 3g modem this is my modem details
    ime starts with 86 serice
    current version 11.126.85.00.114
    target version 11.126.29.01.284
    pls help me
    how to unlock my modem ?

  28. 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 : 868510010435104
    Serial NR. : 8CABYA9311807738
    Firmware : 11.126.29.00.284
    Compile date / time : Aug 13 2012 19:28:09
    Hardware ver. : CD1E153M
    Dashboard version : UTPS23.009.05.01.284_MAC23.009.05.01.284_LNX23.009.05.01.284
    Chipset : Qualcomm MSM6290
    Voice feature : disabled
    SIM Lock status : unlocked
    Wrong codes entered : 10 (unlock attempts left : 0)

  29. Kamalesh, Not able to unlock
    Model: Huawei e173Bu-1
    IMEI: 354369049244040
    Hardware Version: CD1E153M
    Firmware Version: 11.126.29.00.284
    Software Version: 23.009.05.03.1014
    tried both E173Update_11.126.85.00.209_B427 and E1731Update_11.126.15.00.00.B416 but getting “Update failed” error.

  30. Unable to unlock
    Model: Huawei E173Bu-1 (Airtel-India)
    IMEI: 354369049244040
    Hardware Version: CD1E153M
    Firmware Version: 11.126.29.00.284
    Software Version: 23.009.05.03.1014

    tried with update E1731Update_11.126.15.00.00.B416 and E173Update_11.126.85.00.209_B427 got “update failed” error.
    Please help.

  31. I am Unable to Unlock

    imei=354369048725650

    Firmware Version: 11.126.29.00.284
    Software Version: 21.005.22.01.284
    Please Give me unlock info
    i tried both update..
    Please Help

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