MediaTek MT6577 chipset, the file MT6577_Android_scatter_emmc.txt
is essential for flashing firmware and custom recoveries using the SP Flash Tool
. This scatter file acts as a map, defining the partition layout (start addresses and sizes) for components like the preloader, recovery, and system images on the device's eMMC storage. Direct Download Links
You can find hostings of this specific scatter file on the following platforms: Google Drive : A common "hot" link used in various mobile forums [Direct File Link] mt6577 android scatter emmctxt link
: Offers a viewable and downloadable version of the text file [View on Scribd] Baidu Wenku
: A legacy source often cited in older Chinese ROM development posts. How to Use the Scatter File
[Revised] How to use SP Flash tool to flash Mediatek firmware def parse(self) -> bool: """Parse MT6577 scatter file"""
This review appears to be a technical keyword string related to Android firmware flashing and repair, specifically concerning devices powered by the older MediaTek MT6577 chipset.
Here is an analysis of why this "review" is interesting and what it actually means for a technician or enthusiast:
Save as mt6577_scatter_parser.py:
#!/usr/bin/env python3
"""
MT6577 Android Scatter File Parser for eMMC
Supports legacy Mediatek scatter format (eMMC variant)
"""
import re
import sys
from typing import Dict, List, Optional
class MT6577ScatterParser:
def init(self, scatter_path: str):
self.scatter_path = scatter_path
self.partitions = []
self.emmc_layout =
"EMMC_BOOT_1": [],
"EMMC_BOOT_2": [],
"EMMC_USER": []
def parse(self) -> bool:
"""Parse MT6577 scatter file"""
try:
with open(self.scatter_path, 'r', encoding='utf-8', errors='ignore') as f:
content = f.read()
except FileNotFoundError:
print(f"Error: Scatter file 'self.scatter_path' not found")
return False
# Split into partition blocks
blocks = re.split(r'- partition_index:', content)
for block in blocks[1:]: # skip first empty
part = self._parse_partition_block(block)
if part:
self.partitions.append(part)
region = part.get('region', 'EMMC_USER')
if region in self.emmc_layout:
self.emmc_layout[region].append(part)
else:
self.emmc_layout.setdefault(region, []).append(part)
return len(self.partitions) > 0
def _parse_partition_block(self, block: str) -> Optional[Dict]:
"""Parse single partition block"""
patterns =
'partition_name': r'partition_name:\s*(\S+)',
'file_name': r'file_name:\s*(\S+)',
'is_download': r'is_download:\s*(\S+)',
'type': r'type:\s*(\S+)',
'linear_start_addr': r'linear_start_addr:\s*([0-9a-fA-Fx]+)',
'physical_start_addr': r'physical_start_addr:\s*([0-9a-fA-Fx]+)',
'partition_size': r'partition_size:\s*([0-9a-fA-Fx]+)',
'region': r'region:\s*(\S+)',
'storage': r'storage:\s*(\S+)',
'operation_type': r'operation_type:\s*(\S+)'
part = {}
for key, pattern in patterns.items():
match = re.search(pattern, block, re.IGNORECASE)
if match:
value = match.group(1)
if key in ['linear_start_addr', 'physical_start_addr', 'partition_size']:
# Convert hex string to int
value = int(value, 16)
part[key] = value
return part if 'partition_name' in part else None
def display_layout(self):
"""Display eMMC region layout"""
print(f"\n'='*60")
print(f"MT6577 eMMC Layout from: self.scatter_path")
print(f"'='*60")
for region in ['EMMC_BOOT_1', 'EMMC_BOOT_2', 'EMMC_USER']:
parts = self.emmc_layout.get(region, [])
if not parts:
continue
print(f"\n[ region ]")
print(f"'Partition':<20 'Size (bytes)':<15 'Start Addr':<12 'Download':<8")
print("-" * 60)
for p in parts:
size = p.get('partition_size', 0)
start = p.get('linear_start_addr', 0)
dl = p.get('is_download', 'false')
print(f"p['partition_name']:<20 size:<15 0xstart:08x dl:<8")
def export_to_table(self) -> str:
"""Export as markdown table"""
lines = ["| Partition | Region | Size | Start Address | Download |"]
lines.append("|-----------|--------|------|---------------|----------|")
for p in self.partitions:
name = p.get('partition_name', '?')
region = p.get('region', 'EMMC_USER')
size = f"0xp.get('partition_size', 0):x"
start = f"0xp.get('linear_start_addr', 0):x"
dl = p.get('is_download', 'false')
lines.append(f"| name | region | size | start | dl |")
return "\n".join(lines)
def validate_integrity(self) -> List[str]:
"""Check for overlapping partitions or gaps"""
warnings = []
sorted_parts = sorted(self.partitions, key=lambda x: x.get('linear_start_addr', 0))
prev_end = 0
for p in sorted_parts:
start = p.get('linear_start_addr', 0)
size = p.get('partition_size', 0)
end = start + size
if start < prev_end:
warnings.append(f"Overlap: p['partition_name'] starts at 0xstart:x, previous ends at 0xprev_end:x")
prev_end = end
return warnings
Error 3: Missing emmc.txt but Scatter Has eMMC Regions
Some MT6577 scatter files are hard-coded for eMMC and do not require an external emmc.txt. However, if SP Flash Tool throws STATUS_EXT_RAM_EXCEPTION, you need to create a dummy emmc.txt file with the correct partition sizes. Example content: Error 3: Missing emmc
EMC_USER 0x0 0x3a3e00000
EMC_BOOT_1 0x0 0x400000
EMC_BOOT_2 0x0 0x400000
RPMB 0x0 0x4000000
Part 3: How to Obtain the Correct MT6577 Scatter + EMMC_TXT Link
Finding the exact MT6577_Android_scatter.txt and its associated emmc.txt link is not as simple as a generic Google search. You need the exact build for your device model (e.g., Samsung GT-I9082 vs. Karbonn A30+).
Prerequisites
- SP Flash Tool v5.1528 or v3.1344 (for MT6577)
- MT6577 USB VCOM drivers (Windows 7/10 with driver signature disabled)
- Firmware folder containing
MT6577_Android_scatter.txt and emmc.txt
5. Extending the Feature
You can extend this to:
- Generate
ptgen for SP Flash Tool
- Extract raw eMMC partitions from dump
- Rebuild scatter file from partition table
- Compare two scatter files for differences
Part 1: Understanding the Trinity – MT6577, Android, and Scatter Files