Leading carrier of India, the Airtel is also selling the Huawei E5573s-606 model router in the country, which comes with zero (0) attempts left for unlocking, which means the router comes with customized firmware. However, finally, I find the solution through a firmware upgrade, and the device was successfully unlocked.Some details of the E5573s-606 Airtel … Continue reading How to Unlock Customized Airtel’s Huawei E5573s-606 Mobile WiFi Router [FREE]?