: The initial boot code; flashing the wrong preloader is the most common cause of hard bricks.
: It directs the flasher to specific regions for the preloader , recovery , bootloader , and modem firmware . mt6755+scatter+file+verified
| Error Code | Meaning | How Verified Scatter Helps | |------------|---------|----------------------------| | STATUS_BROM_CMD_SEND_DA_FAIL (0xC0060005) | Preloader mismatch | Verified scatter ensures the exact preloader.bin address and file size | | S_SECURITY_AC_REGION_NOT_FOUND (0x7003) | Wrong partition region type | Verified scatter corrects the region field (EMMC vs EMMC_USER) | | STATUS_EXT_RAM_EXCEPTION (0xC0050005) | Memory address overflow | Verified scatter prevents non-existent address ranges | | ERROR: S_FT_NEED_DOWNLOAD_ALL_FAIL | Partition size mismatch | Verified scatter matches partition sizes exactly to eMMC geometry | : The initial boot code; flashing the wrong
Then use readback in SP Flash Tool using a known working scatter, or use (archived version 2.5.3) to generate a scatter from the live device. : The hex memory address where the partition begins (e
: The hex memory address where the partition begins (e.g., 0x0 for the preloader).
He loaded the verified scatter file. SP Flash Tool now showed green checks next to every partition. No warnings. No red text.