DESCRIPTION

Download Stock Firmware ROM from the download link this 

and flash with any SPD supported Flash tool like Spreadtrum

Download Lava Iris X19 Flash file 

Install spd driver

1- Download the package & Extract flash tool.

2- Out of the icon appearing, Double click on UpgradeDownload.exe.

3- It will Launch the tool on PC.

4- Click on Load Packed button & Select the Firmware with extension .pac at end.

5- Click on Downloading button which is at third position. 

6- Switch off your Mobile & connect it to PC using Volume down key.

7- It will lead you to Successful flashing. 

※Please make a backup of your device before installing or updating ROM