Mt6577 Android Scatter Emmc.txt [exclusive] Guide

- partition_index: SYS14 partition_name: NVRAM file_name: NVRAM.bin is_download: true type: NORMAL_ROM linear_start_addr: 0x3800000 partition_size: 0x500000 region: EMMC_USER

While exact hexadecimal addresses vary by device manufacturer (OEM), a standard MT6577 scatter file mapping generally follows this sequential structure: MT6577 Android scatter emmc.txt

PRELOADER 0x0 DSP_BL 0x40000 MBR 0x600000 EBR1 0x604000 PMT 0x608000 NVRAM 0xa08000 SECCFG 0xc88000 UBOOT 0xc8c000 BOOTIMG 0xccc000 RECOVERY 0x10cc000 SEC_RO 0x14cc000 LOGO 0x18cc000 EBR2 0x1ccc000 EXPDB 0x1d0c000 ANDROID 0x1e0c000 CACHE 0x4e0c000 USRDATA 0x78cc000 FAT 0xbe0c000 MT6577 Android scatter emmc.txt

: Depending on the version of the SP Flash Tool you use, the scatter file format might look slightly different. Newer tools (v5.x) are generally backwards compatible, but older MT6577 devices often work best with SP Flash Tool v3.x . Common Troubleshooting MT6577 Android scatter emmc.txt

| 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 |