Usually bundled within "Fastboot ROM" packages.
: Because different manufacturers (like Xiaomi, Oppo, or Samsung) may customize the partition layout of the MT6833 for their specific models, using a generic scatter file can be dangerous. Reliability mt6833 scatter file download exclusive
Once you've downloaded the scatter file, follow these steps: Usually bundled within "Fastboot ROM" packages
[Revised] How to use SP Flash tool to flash Mediatek firmware mt6833 scatter file download exclusive