Android Scatter Emmc.txt — Mt6577

This guide covers everything you need to know about this file, its structure, and how to use it safely with the SP Flash Tool. What is an MT6577 Android Scatter File?

Without an accurate scatter file, the flashing software cannot locate the correct memory partitions. Attempting to flash firmware with a missing or incorrect scatter file will result in errors or permanently hard-brick your phone. Core Structure of the MT6577 Scatter File

Common pitfalls

| Partition | Function | Size (typical) | |-----------|----------|----------------| | | First-stage bootloader (initializes DRAM, loads DSP_BL) | 256 KB | | DSP_BL | Digital signal processor bootloader (modem/audio DSP) | ~256 KB | | MBR / EBR1 | Master Boot Record + Extended Boot Record for partitioning | 1 sector each | | PRO_INFO | Product info (LCD, sensor, battery config) | 5 MB | | NVRAM | Wi-Fi/BT MAC, IMEI, calibration data | 5 MB | | PROTECT_F / PROTECT_S | Factory & security data (encrypted) | 2 MB each | | UBOOT | LK (little kernel) bootloader – fastboot, boot selection | 512 KB | | BOOTIMG | Kernel + ramdisk | 6–8 MB | | RECOVERY | Recovery system (kernel + recovery ramdisk) | 6–8 MB | | ANDROID | System partition (read-only) | 1–1.5 GB | | CACHE | OTA, temporary system cache | 256–512 MB | | USRDATA | User data + internal storage | Remaining space | MT6577 Android scatter emmc.txt

A safety mechanism ( TRUE or FALSE ) ensuring partitions do not overlap. Partition Blocks

: For generating scatter files directly from a connected device's block map.

This happens when the partition layout or address sizes in the scatter file do not match the physical layout of the phone's target storage. This usually means you are trying to flash firmware meant for a different variant of the phone. This guide covers everything you need to know

Contains the Android kernel and the initial ramdisk.

- PART_NAME: bootloader - offset: 0x00020000 - size: 0x00100000 - type: 0

Key fields you’ll see

When using a scatter file to unbrick or update an MT6577 device, ensure the file is . Flashing a scatter file with incorrect address offsets can "hard brick" the device by overwriting the Preloader or critical partition tables, making it impossible for the computer to detect the hardware.

The , introduced by MediaTek as a dual-core Cortex-A9 mobile chipset, shifted device storage configurations from older NAND flash to high-speed eMMC (embedded MultiMediaCard) modules. This shift required specialized scatter text files to accurately map memory addresses, handle recovery operations, and install custom ROMs without hard-bricking the hardware. Understanding the Scatter File Structure

The tool looks inside the active local directory for companion images corresponding to the scatter list (e.g., matching boot.img to BOOTIMG ). Attempting to flash firmware with a missing or