Mt6589 Android Scatter Emmc →

is critical. It tells the tool to write to the user data area of the eMMC (as opposed to the boot1/boot2 hardware partitions used for secure boot).

Think of it as a map. Without this map, a flashing tool wouldn't know that boot.img must go to the boot partition, or that system.img belongs 500MB into the drive. mt6589 android scatter emmc

When you connect a powered-off MT6589 phone, it shows up for 2 seconds as "MediaTek USB Port". You need drivers for this. Use (v1.0.8 or higher). is critical