Airtel India has recently launched a new Huawei‘s Mobile WiFi router, the E5573s-606 (Huawei E5573). It comes with customized firmware and there is no option to enter the unlock code. When you will change the default SIM card of Airtel with any another network, then it will show already used 10 codes and attempts to try is 0. It runs on the firmware version You can also check the firmware version of your device.

Airtel E5573s-606 Huawei Unlock

Airtel’s Huawei E5573s-606 mobile WiFi router can be unlocked after the firmware upgrade.

Before proceeding with firmware upgrade, download the following required files :

1. Huawei E5573s-606 Firmware ver general and Huawei E5573s-320 firmware ver general.7z from

2. Huawei hilink drivers from

3. Firmware code you can generate from Universal Master Code tool or comment with model and IMEI to get it.

How to Unlock Customized Airtel’s Huawei E5573s-606 Mobile WiFi Router :

1. Connect your Huawei E5573s-606 router to PC or laptop via USB cable.

2. Make sure that your router is charged at least 50%.

3. Extract the zip file Huawei_E5573s-606_Firmware_21. and run P711S-E5 update_21.

Note: If you are getting “Error 10: Find port failed” then refer this post to rectify the problem. If your PC is not available under COM ports then run this registry file and restart your computer.

4. It will ask a password. Use flash or firmware code as password.

5. Input the correct firmware code and wait till finish process.

6. After successful flashing of the device, switch off the router or remove the battery and re-insert battery in the device and turn it ON.

7. If it is not detected by PC due for drivers problem then update the drivers (You have already downloaded Huawei Hi-link drivers).

8. Now, download DC unlocker from here or any another source (latest version).

9. Detect the device under DC unlocker.

10. Go to the end of the result.

11. Now type “AT^NVRDEX=50503,0,128” (without quotes) and press enter from the keyboard.

DC with commands

12. Now, it will show NV codes in hash format. Pay Rs. 300 (if from India) or 6 USD (if from outside, then use PayPal button) and mention the details, I will contact within 8 hrs. Hash code will be converted into the unlock code / NCK and will be emailed back to you.

Note: After getting the code through email, proceed with further steps.

13. Now, extract Huawei_E5573s-320_Firmware_21. file in a folder.

14. Run the firmware setup file again. During this period, it will not ask the password.

15. Wait till firmware successfully installs in the device.

16. You will notice that all light are turned ON, including battery light and network light.

17. Open web-browser (Internet Explorer) in PC and browse for

18. Login to device router panel (username and password are admin).

19. Here, you will see, your device have 10 unlocking attempts left.

20. Just enter correct unlock password in a router and your router will be unlocked.

Note : Don’t try to enter any wrong / free unlock code into the router, otherwise it will be locked permanently.

Generating unlocking code was not so simple task, a very big thanks to Balwinder Singh for sharing images and tips about the unlocking.

Note : This firmware process is mandatory for all the Huawei E5573s devices.

Update : Various people are facing driver problem in Windows 10 /8 / 7 / XP PC. For that, download the latest Huawei Mobile Partner, install in PC, and now restart the PC. All Huawei drivers will be updated successfully. Now, you can proceed with further steps.

Update: Airtel is now providing updated Huawei E5573s-606 MiFi router. It comes with firmware version 21.315.01.00.284 and WebUI It can be unlocked with above method, after shot of boot. Unlocking of Idea E5573s device is also possible after shot of boot. The procedure is same as Airtel E5573 unlocking.

Update: Airtel and Idea have recently launched Huawei E5573cs-609 in India, both devices can be unlocked.


  1. sir,please help, firmware update is succesfully,but my E5573s-606 AIRTEL WIFI MODEM is not visible ,not conect,pls help me sir,my whats app number 9655693609,

  2. My imei no is 866079021326167. model no. e5573s-606. i have try to unlock with new algo and old algo but is not a write code. so i need the write simunlock code

  3. Sorry I do not think this the right method as it is bricked only after following your method. Also many other problem have similar problem as I can see in the forum discussion. Please check and give the solution.

    • Sorry Kamlesh. I was actually doing in a wrong way.I did as you directed today in proper way and now it all fine.Thanks a lot.Sorry to be rude before.

  4. dear all after lots of efforts and getting errors esspecially “error code 10” on my windows 7 OS, several times, finally Just now I had successfully unlocked my AIRTEL MiFi 5573s-606. PLEASE NOTE: Only V4 Algo Unlock code works with these MiFi.

  5. As a Nowise in all these, I had tried hundreds of options that I got
    from google search, but non of them worked for me and at last I got
    frustrated with “Error Code 10, Find Port Failed”, But one thing I
    understood was that this error code 10 was due to different types of
    drivers installed in my laptop. I also tried with Ubuntu way, but
    couldn’t. Hence finally I tried my own way, the hard way, After backing
    up all my datas, I completely formated my laptop and installed Windows 7
    (Fresh copy), then without updating any of the drivers (Including USB
    drivers), I tried to flash my MiFi using backed up downloaded firmwares,
    guess what ??? I didn’t got any error code 10, and I successfully
    flashed my MiFi with non-customised firmware.
    For complete unlocking
    proceedure (100% free and working) visit this link:

    NOTE CAREFULLY, the first step, its important, or else you may not be
    able to generate Hash1 & Hash2. Only Flash the non-customised
    firmware relevant to your MiFi model, ie., if you are having E5573s-606,
    then flash it with
    “Huawei_E5573s-606_Firmware_21.”, in first step,
    and if your MiFi model is E5573s-320, then in first step flash it with “Huawei_E5573s-320_Firmware_21.”.
    you successfully flashed your MiFi, then you are good to generate Hash1
    and Hash2, Your MiFi may not be visible after flashing, for that you
    just download and install 1) “Drivers_v.” and then 2)
    “Drivers_v.”. Now using “Huawei_2015_Code_Reader”, you can
    generate Hash1 and Hash2. Once you get both of these hash, write both in
    a word file with “CAPS ON” and add one space between each two
    alphanumeric letters, at the end, you must get 32 plus 32 pairs (If you
    had done everything correctly). Now copy these 32 + 32 (64 pairs) into
    and generate your UNLOCK CODE,

    Now once you had got your v4 algo unlock code,
    Flash once again your MiFi with the other non-customised Firmware ie.,
    if in first step you had flashed it with “606” firmware, then now you
    need to flash it with “320” version firmware,and vice-versa. To do so
    you may need to first instal .net framework 4.5 or later. Once you had
    successfully flashed your MiFi for second time, then connect MiFi using
    USB cable after inserting a non-supportive (Other network) SIM. Now you
    will be prompted for Unlock code, just put your generated v4 algo unlock
    code. Now your MiFi is unlocked for life time. This proceedue is
    applicable to all latest MiFi’s.

    • Airtel 4G HotSpot E5573
      Model Number: E5573s-606

      I am facing following issue while updating Firmware_21. So could you please help me.

      “Error Code:10, Find port failed!”

  6. hi want unlock my airtel 4g hotspot( INDIA)



    please advice me how i can pay u and how much fee

  7. send me payment link
    want unlock my airtel 4g hotspot( INDIA)



    please advice me how i can pay u and how much fee

  8. Hello Kamlesh
    we unlocked Airtel 4g wifi hub, it has been 2 months now, i am facing a problem since then the internet stops working all of sudden having full signal strength or tried even at different location. data shows connected but doesnt work . have to restart wifi hub and it starts working again. any solution for this?

  9. hi Kamlesh, i have followed all the steps to unlocked my airtel wifi 4g device, instead of unlocking my device does not detect my phone and pc, the signal and battery lights glow together. and now only the signal light glow. my imei no. is 866079024896158. is my device is dead or can it be restored to its previous status. please help me. my device model is E5573 337A

  10. Device name: E5573s-606

    IMEI: 866079027591574

    IMSI : 404022100077607

    My number: Unknown

    Hardware version: CL1E5573SM

    Software version: 21.315.01.00.284

    Web UI version:

    This is unlocked by the old method please update the latest unlocking firmware

    call me +91-7508003477

  11. Device name: E5573s-606

    IMEI: 866079027591574

    IMSI : 404022100077607

    My number: Unknown

    Hardware version: CL1E5573SM

    Software version: 21.315.01.00.284

    Web UI version:

    This latest firmware is not unlocked by the old firmware file. please update the new firmware file for unlocking new firmware

    Its giving error 19

    Call me +91-7508003477

  12. All r now suffering with this new version 21.315.01.00.284
    Is there any Sol did u got bro plz post otherwise so many r trying with old type ……
    And suffering

  13. Error Code 19 everytime. Airtel 4G Huawei model E5573s-606. IMEI 866979027904967. I am using the following Flash code: 44834265.

    Error Code 19 everytime!!
    Please help me!

  14. Please add Huawei E5573s-606 Model (Firmware 21.315.01.00.284) for unlocking and reset counter… Its locked to airtel India.

    Firmware : is unlockable…


    Firmware : 21.315.01.00.284 is not supporting unlock …

    so please add this model with Firmware 21.315.01.00.284 for unlocking if possible…

  15. Hi,

    nice blog:) Thanks For that, nice infos.
    I got a 4g e5573s-606 from Optus(Australia), can i unlock this one? Firmware is and webui IMEI is 866079028373915.
    Would be nice to hear from You!
    Thanks in advance
    Best regards

  16. The comment above, but seeams like need just some time. When I am back from Australia, i gonna try to unlock Like in the link you posted. Do i need the Firmware code? IMEI: 866079028373915

    Thx 4 your fast respond
    Have a good one

  17. y don’t u post clearly full procedure of this airtel new version ( 21.315.01.00.284 ) plz
    so many of us r suffering with this
    so plz

  18. I would like to unlock E5573s-508 software version tied to mexican carrier Iusacell. Will your procedure work? Thank you for your response

  19. Yes I can browse default IP and interact with the modem. When I insert a foreign sim I get a message indicating the device is blocked and eventually I get a screen where it asks for the unlocking code. I tried to upgarde firmware is carrier sim not the foreign sim

  20. I am unable to unlock my device
    Error code 19 download failed, flash code and everything is accepted after that no progress just the device restarts and download failed.
    IMEI num: 866079027845277

  21. we started unlocking of Huawei E5573s-606 Model (Firmware 21.315.01.00.284) for unlocking and reset counter… Its locked to airtel India. it takes 10 minits if it is in our hands
    for more mail me at or +919995284999.we located at cochin kerala india

  22. hi
    my software version is 21.315.01.01.284
    web ui is
    error 19 keeps showing pls help
    have tried with different flash versions

  23. I have done according to your directive stated above, to the point of DC Unlocker, i discovered that the “NV codes in hash format” as you said did not appear at the down part of the DC Unlocker interface.

    Secondary, the ip you said i shld brows via web browser, didnt respond, i couldn’t get the Login to device router panel to login my username and password.
    Pls what do i do now becourse the device is now useless to me, i don’t know what to do next. pls help.

    • found the firmware. flashed the device and restarted. the PC did not detect it, then I updated the drivers but the PC is still not detecting it. both green LEDs are on.

  24. Got this from my DC locker

    DC – Unlocker 2 Client 1.00.1277

    Detecting modem :

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

    Found Applications port COM8

    Found modem : E5573s-606
    Model : Huawei E5573 (untested)
    IMEI : 866079022764655
    Serial NR. : R3TDW15902000343
    Firmware :
    Compile date / time : Oct 16 2014 14:17:46
    Hardware ver. : CL1E5573SM
    Dashboard version : WEBUI_17.
    SIM Lock status : Locked (Card Lock)
    Wrong codes entered : 0 (unlock attempts left : 10)



    ^NVRDEX: 50503,0,128,97 AC 4F D7 96 09 E0 E0 2B 2F 09 71 21 B5 C5 E5 E6 BC 5D 6B A5 51 38 EE 75 1A 39 AF 0B 76 72 93 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 95 73 99 6C 48 1C 5C F0 72 3D 83 A4 8E 8A FE 2C CF 8E 64 50 41 99 7E 16 16 A9 C3 52 94 25 A1 CE 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

    Whats my status? am I going right? what do I need to do?

  25. Hello there I want to unlock my single no. Airtel 4G modem with firmware version as 21.315.01.01.284 and Web UI Ver. as

    Send me the procedure or u unlock through team viewer I pay the fee as paytm recharge.
    Contact me through email.

  26. Hello kamlesh, i followed your dead shot procedure sound also came everything was ok but loader is not detecting the device… drivers are also installed can you please help me?

  27. HI kamlesh, i installed as per your instructions mobile partner. but its not showing in my device manager ports. any suggestions? may be thats why its not detecting?

  28. HI kamlesh, can you suggest me the web ui for Huawei E5573s-606 which have support of 4g, 3g ? the web ui you have posted they are not supporting 3g, 2g only 4g is working.

  29. hi i have done everythin with boot shot method, and jio is working in lan mode but wifi password is not matching with default method. please suggest

  30. sir after dead boot still facing error code 10 in my laptop and error code 19 in my desktop i don’t what is reason kindly give me your cell no. i want to unlock this device kindly support me…8679741555 thanx

  31. I have unlocked my Airtel hotspot, all sims were working, today I used Jio sim but I am not getting any network on the device. I have changed apn also to Jionet still I don’t get any network. I tried to search network manually and latch it still it does not happen. Please suggest

  32. I did reset the device , still no network on Jio, other networks are working fine. What possibility could be for Jio not to work. Can you please help

  33. Found modem : E5573s-606
    Model Huawei E5573 (untested)
    IMEI : 866079027642484
    Serial NR. : R3TDU16321006636
    Firmware : 21.315.01.01.284
    Dashboard version : WEBUI_17.
    Web UI version : WEBUI_17.
    SIM Lock status : Locked (Card Lock)
    Wrong codes entered : 10 (unlock attempts left : 0)
    plz unlokc this i wil pay 300 rupes

  34. Hi Kamlesh,
    I’ve bought two of these unlocked from but both of them are exhibiting a similar problem with regards to charging the battery. After more than 5 hours of charging the battery its still at 75% and drops to 50% within 3 minutes. No matter how much time its charged, the charge does not go beyond 75% and drops immediately. Initially I thought its a battery problem and asked for a replacement. But the replacement is also acting the same way. It looks new and its date of import is 08/2016. The battery has a date stamp of 07/27. Is this a battery issue or could this be related to the unlocked firmware?. The firmware is Other than this problem, the device is working great with my Idea sim.

  35. Hi Kamlesh, I have a huawei e5573s-606 modem which I want to unlock. My modem details are as follows, how should I proceed to unlock and payment details.

    Device name: E5573s-606
    IMEI: 866079028950068
    IMSI : 404950993213675
    My number: Unknown
    Hardware version: CL1E5573SM
    Software version: 21.315.01.01.284
    Web UI version:

  36. Hi Kamlesh,
    I have an Airtel Nigeria Huawei router. Details below.
    Device name: E5573s-320
    IMEI: 860861034837231
    IMSI : 621205240217326
    My number: Unknown
    Hardware version: CL1E5573SM01
    Software version: 21.316.03.01.408
    Web UI version:

    Please which firmware should I use?

  37. HI kamal sir,

    i have idea dongle i am trying to unlock that with boot shot method, can you let me knw please the same e5573s-320-update-21-110-99-03-00-universal will work with the dongle or not? please confirm me .

    Thank you

  38. Device name: E5573s – 606
    Imei no: 866079027273447
    Imsi no: 405852457070253

    How to unlock 4g hotspot?
    I need password to unlock.

  39. HI kamlesh sir,

    sorry for earlier message it was wrong i guess from my side, after the flash of 21-110-99-03-00
    i am trying to use
    its installing but port is missing after it can you tell me is it correct update for the idea dongle or is it only for airtel?

  40. Hi
    I have followed your proceger and all work good but while installing weui it is not detecting the port error 10 showing
    Plz help me

  41. Hello.
    I have an Airtel e5573s-606 model Hotspot device. When I try flashing the firmware it shows Error 19. Cannot download. Can anyone help.

    I am ready for the teamviewer support also.
    I want this device to get unlocked. I want to use Jio or BSNL with this.

  42. bro,i have a huawei E5573Cs-609 device from i want to use the jio sim with the modam,i want to unlock my device.pls hlp bro

  43. Sir I have done everything as you said but at last it shows contact your ISP to unlock the sim and I insert non airtel sim.How to know my sim unlock code pls help me out.

  44. My device E5573s-606
    old algo-62321614
    I have tried all these but no result I mean sim card unlock failed.What I am gonna do now??