I have already successfully unlocked Airtel-branded Huawei E5573s-606 router. We are also offering unlocked E5573 router in cheap rates. But, in case you want to lock your router again, and don’t want to further use any another network provider SIM card in E5573 then we have original firmware too.

After running this firmware (link below the post), your E5573 router will be successfully locked again as brand new. This firmware is tested with one device and working fine.

Huawei E5573

While running the firmware, the device will ask you firmware code, leave a comment below with model and IMEI to get the firmware password.

How to lock Airtel E5573S-606 Huawei router with original firmware?

  1. Download original firmware of Airtel India E5573 mobile WiFi router.

2. Connect your device with Windows PC.

3. Disconnect internet (if already connected) and close the browser.

4. Unzip the downloaded file with WinRAR.

5. Run the firmware update (E5573s-606_21.

6. Input the password, which you have already got into the comment.

7. Follow screen steps.

8. Wait till finish wizard.

Now, your device is successfully locked again, and you will only able to use Airtel India SIM card.

Download Airtel E5573S-606 Huawei Original Firmware


  1. hi i have changed the webui and now i can not find web ui that comes with this device..
    where to find Web UI version: india)

  2. Hello i installed this firmware on my device (Airtel-Huawei E5573s-606)
    but still its looking (WebUI) like that huawei WebUI which I earlier had installed on it
    Please Help How can I get that default WebUI which had came Pre-Installed On my modem?

  3. Hi Device name: E5573s-606
    Software version: 21.316.03.00.965
    Web UI version:

    in this both light blink with sim its not detect in pc its unlock and now not working what i do help me ??

  4. both green light blinking when sim inserted but working without sim any solution
    how to fix dis coz m not able to use any sim cards


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