Airtel 7.2 Mbps Data Card e173cs-1 also known as Huawei 1731 modem Hi-link download the default original firmware version 21.157.31.00.284 here this modem comes in locked status only specific sim card can be used into it so you need to unlock it before use any other mobile operator sim card to unlock read our old post Airtel Huawei E1731 (E173Cs-1) NEW IMEI (86***) UNLOCKING also you can request new algo code there.
Steps to setup airtel huawei e173cs-1default firmware update : -
- First of all make sure that you have connected your Airtel Broadband modem properly and installed Airtel India Dashboard and all the drivers.
- Close the dashboard and other updating wizards.
- Download E173Cs-1 Update_21.157.31.00.284 or Mirror.
- 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.
- 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 don’t interrupt it.
- Then after you can see that it will start flashing your modem.
- At the end of flashing you can see the Success window click on Finish.
- And you are done.