Check the downloads available below and select the exact match for your Lava Android device by clicking the download link next to it to download your phone's official firmware package.
Scroll to post end to find flashing instructions.
If you can't find your device firmware file on this list, use the comment below to inform me.
How to flash Lava Stock Firmware
Some Lava phones, like X80 require Manufacturing Flashtool (MFT) to flash its stock firmware.
http://austinangck2809.blogspot.com /2016/09/how-to-flash-stock-firmware-via.html">Click here to download and learn how to use MFT.
For Spreadtrum (SPD) phones,
http://austinangck2809.blogspot.com /2015/11/how-to-flash-stock-rom-firmware-on-any.html" target="_blank">click here.
Got problems flashing the firmware? Post in comments.