Are you trying to with an MT6735 chip, or are you trying to program an E-Ink display device?
OEMs (like Xiaomi, Tecno, Infinix, Alcatel) produce flash files using MediaTek’s proprietary format. The build process includes: mt6735 flash file
An MT6735 flash file is a collection of software components—including the operating system, kernel, drivers, and recovery image—packaged specifically for the MT6735 64-bit Quad-core processor. Are you trying to with an MT6735 chip,
to disable authentication before the tool can write to the memory. mt6735 flash file
