Addresses shown are relative; real offsets vary by OEM.
Usually means driver issues or incorrect scatter file. Reinstall VCOM drivers.
: Even within the MT6577 family, different manufacturers might use different partition sizes. It is always best to use a scatter file extracted from the official stock ROM for your specific model.
A scatter file is a plain-text configuration file that maps the physical memory addresses and partition layouts of a device’s flash storage. For the MT6577 platform, which relies on storage rather than older NAND flash, the scatter file tells the flashing tool exactly where to write each firmware component. MT6577 Android scatter emmc.txt
Open the scatter file in a text editor and double-check the memory addresses against a fresh "Blocks Map" generated directly from the device. Alternatively, use the Firmware Upgrade option instead of Download only in SP Flash Tool if you are certain the firmware matches your hardware model. 2. BROM ERROR: S_COM_PORT_OPEN_FAIL (1013)
Choose your destination directory and save the file as MT6577_Android_scatter_emmc.txt . How to Use the Scatter File in SP Flash Tool
: Ensure that the scatter file is specific to your device model, as using a scatter file from a different model can cause issues. Addresses shown are relative; real offsets vary by OEM
Common issues / pitfalls
Understanding this file is critical for recovering dead devices, installing custom firmware, or modifying partition sizes. What is an MT6577 Scatter File?
[FLASH INFO] ; Please define the size and count of your eMMC ; Block size: 512 byte ; Total size: as your eMMC size (MB) block_size = 512 total_blocks = 305833984 : Even within the MT6577 family, different manufacturers
In the MT6577 generation, these brackets typically remain empty or contain basic logical parameters defining file dependencies or physical partition lengths. How SP Flash Tool Utilizes the Scatter File
Drop a reply if you need help adapting this to your specific MT6577 model.
Wrap-up Understand and respect the scatter_emmc.txt: it’s small but powerful. Use the exact scatter for your MT6577 model, back up before you touch partitions, and limit what you flash to reduce risk. With careful handling, the scatter file makes firmware work predictable and recoverable—get it right and you’ll save hours of troubleshooting.