Download the latest version of Smart Phone Flash Tool.
(Note: This is a generic template; for best results, extract it from your specific Stock ROM.) How to Use the MT6577 Scatter File with SP Flash Tool
The scatter file is a small text document used by MediaTek-based smartphones. Because the MT6577 is an older architecture, many devices from brands like Lenovo, Alcatel, Micromax, and various generic "Chinese clones" use this specific file structure.
Launch the flash_tool.exe as an administrator.