Download Android KitKat 4.4 stock firmware for Leagoo Alfa 5 smartphone from here or from here. Download another Leagoo firmware from here.
Archive： LEAGOO Alfa 5 OS1.1 Lite_20160107
Firmware: Android Lollipop 5.1 stock
Model： Leagoo Alfa 5 smartphone
Image file size: 495 MB
Platform: Spreadtrum SC7731
Caution: Please do not update firmware unless you know what you are doing, you really want it or it is absolutely necessary. Firmware updates may occasionally have bad results, like bricking your device, temporarily or permanently. The firmware update process is done entirely at your own risk. Before attempting to update the firmware, back up your data.