In this post, you will get all available firmware and WebUI download link absolutely free. You can refer to the unlocking of the Tata Photon Max 3G WiFi Data Card (Huawei E8231s-1). I had also unlocked Huawei E8231 Life (Belarus).
Note: Firmware may ask you for code; leave a comment below with model and IMEI to get it free. However, unlock code is chargeable.