A scatter file for the (often associated with the MediaTek Helio G80/G85 platform) is a text-based configuration document that defines the memory map and partition layout for devices using this chipset. It serves as a critical bridge between flashing software, such as the SmartPhone Flash Tool (SP Flash Tool) , and the device's physical EMMC storage. 1. Purpose and Functionality
The scatter file tells the flashing tool exactly where each software component (like the bootloader, recovery, or system image) should be written in the device's memory. Partition Mapping : It lists every partition, including
, along with their start addresses and lengths in hexadecimal format. Safety Checks
: Modern scatter files (V1.1.1 and V1.1.2) include boundary checks to ensure that a partition does not overwrite another, preventing critical device failure during the update process. Storage Management
: It is specifically optimized for EMMC storage management on the MT6769 platform. 2. Key Components of the MT6769Z Scatter File
A standard MT6769Z scatter file contains several essential parameters for each partition: Partition Name : The identifier for the block (e.g., : The corresponding binary image file that will be flashed. Linear Start Address
: The physical starting point on the EMMC chip where the data begins. Partition Size : The total allocated space for that specific partition. Operation Type
: Instructions on whether the partition is updateable, protected, or requires specific download protocols. 3. Usage in Firmware Flashing mt6769z scatter file
To use the MT6769Z scatter file for repair or customization: Preparation
: Install MediaTek VCOM drivers and download the SP Flash Tool. : Open the tool and select the MT6769_Android_scatter.txt
file. This automatically populates the list of partitions to be flashed. Flashing Modes Download Only : The safest mode for most updates. Firmware Upgrade : Used when the partition layout has changed. Format All + Download
—this can erase the NVRAM and IMEI, leading to loss of network connectivity.
: Click "Download," power off the device, and connect it to the PC while holding the appropriate volume key. 4. How to Obtain or Generate a Scatter File MT6769 - Android - Scatter (New - Format) | PDF - Scribd
Before handling its scatter file, it helps to know the silicon:
The scatter file for this chip is partition-independent—meaning the chipset name (MT6769Z) is less about the file's content and more about compatibility with the preloader and bootloader stages. A scatter file for the (often associated with
An MT6769Z scatter file is a specific configuration text file used for devices powered by the MediaTek MT6769 (Helio G80/G85) chipset. It acts as a memory map that tells flashing software exactly where each component of the firmware (like the bootloader or system image) should be written on the device's internal storage. Key Features and Specifications
Platform Configuration: Specifically designed for the MT6769 platform (often listed as MT6769H or MT6769Z) using EMMC storage.
Partition Mapping: Defines the layout for roughly 22 to 24 partitions, including: Preloader: The initial bootloader. Recovery: Used for system maintenance and updates. Vbmeta: Responsible for verified boot.
Userdata: The largest partition for storing personal files and app data. Data Fields: For every partition, the file specifies:
linear_start_addr and physical_start_addr: The exact memory starting point.
partition_size: The maximum allowed length for that block of data.
is_download: A flag indicating if the partition should be updated during a flash operation. CPU: Octa-core (2x Cortex-A75 @ 2
Version Control: Commonly found in versions like V1.1.1 or V1.1.2, which ensure compatibility with specific firmware revisions. Primary Use Cases
[Revised] How to use SP Flash tool to flash Mediatek firmware
Do NOT use scatter files from different models, different board IDs, or untrusted sources.
partition_index: SYS0 partition_name: preloader file_name: preloader.bin is_download: true type: NORMAL linear_start_addr: 0x0 physical_start_addr: 0x0 partition_size: 0x40000
partition_index: SYS1 partition_name: pgpt file_name: NONE is_download: false type: NORMAL linear_start_addr: 0x0 physical_start_addr: 0x0 partition_size: 0x80000
Common partitions you'll see:
| Partition | Description |
|-----------|-------------|
| preloader | First-stage bootloader (low-level HW init) |
| pgpt | Primary GPT (partition table) |
| lk / bootloader | Little Kernel (second-stage bootloader) |
| boot | Kernel + ramdisk (boot image) |
| recovery | Recovery image |
| system | Android system image |
| vendor | Vendor-specific system files |
| userdata | User data + internal storage |
| cache | Cache partition |
| tee | Trusted Execution Environment |
| metadata | Encryption metadata |
| seccfg | Secure config (bootloader lock state) |
| nvram | IMEI, Wi-Fi MAC, BT address |
| protect1/2 | NVRAM backup |
| vbmeta | Verified boot metadata |
After a Google account lock, many technicians use the scatter file to flash only the persistent or nvdata partition without touching the user's personal data.
Creating a scatter file for the MT6769Z processor requires careful attention to device specifications, memory layout, and firmware components. By following the steps outlined in this guide, users can create a valid scatter file, ensuring accurate flashing and device compatibility.