I have already successfully unlocked the Airtel-branded Huawei E5573s-606 router. We are also offering unlocked E5573 router at cheap rates. But, in case you want to lock your router again and don’t want to use any further 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.
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 the Airtel E5573S-606 Huawei router with original firmware?
1. Download original firmware of Airtel India E5573 mobile WiFi router (Link is provided at the end of the post).
2. Connect your device with Windows PC.
3. Disconnect the internet (if already connected) and close the browser.
4. Unzip the downloaded file with WinRAR.
5. Run the firmware update (E5573s-606_21.180.17.01.284.exe).
6. Input the password, which you have already got into the comment.
7. Follow the onscreen steps.
8. Wait till the finish wizard.
Now, your device is successfully locked again, and you will only be able to use the Airtel India SIM card.
