AIRTEL E173CS-1 DEFAULT FIRMWARE (21.157.31.00.284)

Today I am updating some interesting article for those who have flashed the airtel E1731CS-1 default firmware from modified firmware and want to relock his modem with default firmware. 


STEPS TO FLASH 21.157.31.00.284 IN AIRTEL INDIA E173CS-1



1. First of all make sure that you have connected your Airtel Broadband modem properly and installed Airtel India Dashboard and all the drivers.

2. Close the dashboard and other updating wizards.


4. Open E173Cs-1 Update_21.157.31.00.284.Exe and you can see the terms and condition window select “I Agree the terms and condtions” and click on ok.

5. Now you can see it will process like Finding Port after complete it will shows Find Port Succeed then you can see Getting The Device Information. let it do it on its way do not interrupt it.

6. Then after you can see that it will start flashing your modem.

7. At the end of flashing you can see the Success window click on Finish.

And you are done.

Note :- Flashing will lock again your modem so you have to re unlock it.

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