Download LYF Water 11 LS 5017 flash file, Stock rom or firmware
SP Flash Tool : Quick Points
LYF Water 11 LS 5017: Use Firmware Upgrade in SP Flash tool to Reset FRP
Try to use Firmware Upgrade option to initialize Flashing.
While, loading Firmware in SP Flash tool.
Untick Preloader, which held responsible for Mobile life. If this file get corrupt, your LYF Water 11 LS 5017 will be dead.
Make sure to install Mtk driver to make communication between Mobile & PC (Flash tool)
While, installing Stock ROM. If the process get interrupted, it will result in Android logo with exclamation mark.