Airtel New Modem Model E173cs-1 Solution

[appi123]

when i use Huawei code writer to write unlock code is getting ERROR

[Arvind123]

Pl give screen shot for error.

I once again in short give procedure

(1) Upgrade your dasbosrd first to my dasboard degrader or any other mobile partner--(Dasboard change)

(2) Download this upgrader E173Cs-1 Update_21.157.13.00.910.B757 and upgrade (Firmware change)
during this firmware change you have to give password.Means Flash code 0f your IMEI.
It can be calculated from Old caclulator. Done

(3) Use Huawei code writer, Find the com port of modem, connect, clicl on unlock modem, it will ask for unlock code,
Give unlock code as per new Algo. which i have given, send unlock command ...OK

All done by Bro.

Always use Huawei code writer at last, remove modem and reconnect, dont put any CIM in it.

Do as directed, post your result

[Jainath]

I do as directed by Arvind123 from first step to last modem unlocked successfully with all network running successfully. I tested reliance 3G it work fine after unlock. Thank you very much. You are real hero first to give free unlock solution for Airtel New version modem here in this forum.

Thanks to this forum where i found a solution.

[appi123]

Hi Arvind123, i also completed all the procedure as directed by you but when i use Huawei code writer to write unlock code is getting ERROR, below is the scree shot of that error. please kindly help me on this.unlock.JPG

[Jainath]

It is when you entered wrong unlock code. Pl post your Modem model no inside cover and correct IMEI No. Your problem will be solved.

[appi123]

My Modem Model No - E173Cs-1
IMEI - 863791011042926

please kindly help on unlocking this.

[Arvind123]

Yes Jainat is correct this is due to wrong unlock code given to modem.

Your Unlock code is which i have given is correct

IMEI: 863791011042926
Flash Code: 45174111
Unlock Code As per New Algo : 82957145

You have to give 82957145 at the place of enter modem code

Unlock Error .png


Try try try ! never hopeless, it is the way to learn.

[appi123]

sir i am giving 82957145 this unlock code only but i am getting same error please help me.

[Arvind123]

Disable your antivirus if any used,
Reset your comport,

Download to original dealt firmware

Airtel India E173Cs-1 Default Firmware 21.157.31.00.284

Again flash your firmware to E173Cs-1 Update_21.157.13.00.910.B757

try again to unlock by huawei code writer

Prepare video demonstration to see where you are mistaken.

[appi123]

i done all the steps correctly & i am unable to create video sorry, I alredy entered wrong code 10times can u tel me how to reset counter in E173Cs-1 modem.

when i try to downgrade my modem firmware to E1731Update_11.126.15.00.00.B416 i got error saying "the wireless terminal inserted is not firmware, update wizard can't work on."

can u please help on this.

[ashok_mobiles]

Thnx brother...............

[kirtiazad]

need unlock code of

863791010451888 of airtel 173cs-1

[Arvind123]

i done all the steps correctly & i am unable to create video sorry, I alredy entered wrong code 10times can u tel me how to reset counter in E173Cs-1 modem.

when i try to downgrade my modem firmware to E1731Update_11.126.15.00.00.B416 i got error saying "the wireless terminal inserted is not firmware, update wizard can't work on."

can u please help on this.

Dont worry, modem can be reset, You have choose wrong firmware see my topic reply default firmware is starts with 21.157,31.00.284, not your this E1731Update_11.126.15.00.00.B416 it is for old model 173bu-1.

Modem worng code can be reset from Huawei modem unloacker

[Arvind123]

For Kritiajad, I have calculated as per your IMEI

IMEI: 863791010451888
New Algo Unlock Code: 87057013
Flash Code: 39344652

Pl. post your result here, for confidence in others members.

[appi123]

yes i used 21.157.31.00.284 this firmware but i am getting the same error, when i try to reset counter using Huawei modem unloacker its not getting reset.