If your scatter file lists linear_start_addr for "ANDROID" as 0x4a80000 but your device’s eMMC partition table (from emmc.txt ) shows it at 0x5c00000 , you will hard-brick the device by overwriting NVRAM or PRELOADER.
Months later, an engineer from a rival plant stopped by, curious why the MT‑6577 units were oddly resilient. "What's the secret?" he asked. mt6577 android scatter emmctxt better
For the MT6577 chipset, you must use a scatter file specifically designated for eMMC storage If your scatter file lists linear_start_addr for "ANDROID"