Using a scatter file from a different MT6768 device (e.g., using a Redmi 9 file on a Samsung A31) can permanently "hard brick" the hardware due to differing partition layouts.
A scatter file acts as a technical blueprint for your device's internal storage. It tells flashing software, like the SP Flash Tool mt6768-android-scatter.txt
partition_index: 3 partition_name: UBOOT file_name: u-boot.bin is_download: 1 type: NORMAL_ROM linear_start_addr: 0x0 physical_start_addr: 0x000C0000 partition_size: 0x00100000 region: EMMC_USER Using a scatter file from a different MT6768 device (e
Wait for a purple/green progress bar. Once complete, a green checkmark appears. a green checkmark appears.