Here’s a helpful blog-style post about the MT6761 scatter file, focusing on the meaning of the "top" address and how to use it properly.
4. Use the scatter file with SP Flash Tool mt6761 scatter file top
partition_size: The exact size allocated for this partition (in Hex). If the binary file exceeds this size, the flash will fail.is_download: A boolean flag. If true, the tool flashes the file. If false, the tool skips it (useful for preserving userdata during a firmware update).region: critical for MT6761. Defines the area of the eMMC:
Partition Mapping: It typically defines between 22 to 24 unique partitions on the eMMC storage. Here’s a helpful blog-style post about the MT6761
When analyzing an MT6761 scatter file, the hierarchy of partitions follows the boot flow. partition_size : The exact size allocated for this
Modern MT6761 devices (Android 10+) introduce DA (Download Agent) authentication that validates the top section: