A scatter file is a simple text document that acts as a "map" for the SP Flash Tool . It tells the flashing software exactly where each piece of the firmware—such as the bootloader, recovery, and system image—should be written on the device's physical memory.
: If you use a NAND scatter file on an eMMC device, the SP Flash Tool will return an error because the memory addresses won't line up. Always ensure your file is named MT6577_Android_scatter_emmc.txt . How to Use the MT6577 Scatter File To flash or unbrick your device, follow these steps: mt6577 android scatter emmctxt link
[Revised] How to use SP Flash tool to flash Mediatek firmware A scatter file is a simple text document