Click on "choose" next to the Scatter-loading File box.
The MT6768 scatter file is a technical configuration document in .txt format that defines the physical memory layout and partition structure of devices using the chipset. It acts as a roadmap for the SP Flash Tool , telling the software exactly where to write specific firmware components like the system, recovery, and bootloader into the device's storage. Core Technical Specifications mt6768 scatter file
Without a proper scatter file, flashing firmware on MediaTek devices would be nearly impossible. Click on "choose" next to the Scatter-loading File box