How To Convert Bin File To Pac File Portable
import re
with open('firmware.bin', 'rb') as f: data = f.read().decode('latin-1') proxies = re.findall(r'\d1,3.\d1,3.\d1,3.\d1,3:\d2,5', data) print("Potential proxies:", set(proxies))
This doesn't convert but helps locate proxy IPs/ports for manual PAC creation.
Using the extracted data, write a PAC script manually:
function FindProxyForURL(url, host) // Direct access for local network exceptions if (shExpMatch(host, "192.168.1.*")) return "DIRECT"; if (shExpMatch(host, "10.0.0.*")) return "DIRECT";// All other traffic goes to the extracted proxy return "PROXY 192.168.1.100:3128";
Save as proxy.pac. This file is now portable—place it on a web server or load it locally in browser network settings.
For more complex conversions or to automate the process, you might consider using scripting languages like Python. Python can easily handle binary data and also parse and modify JavaScript files (or generate them).
| Tool | Purpose |
|------|---------|
| binwalk | Analyze raw BIN for partition offsets |
| dd (Linux/macOS) or HxD (Windows) | Extract partitions from a large BIN |
| sprd_pac_tool (Python) | Create PAC from partition files |
| ResearchDownload (official tool) | Flash PAC files (optional verification) |
| Firmware Image Kitchen | Handle Android boot/recovery images |
| 7-Zip | Check PAC internals (if not obfuscated) | how to convert bin file to pac file portable
⚠️ Many PAC tools are Windows-only or require Python 2.7. Use virtual environments.
Clone or download:
git clone https://github.com/lysdexic-team/sprd_pac_tool
cd sprd_pac_tool
Place your extracted BINs in a folder, e.g., partitions/:
partitions/
├── boot.bin
├── system.bin
├── userdata.bin
├── prodnv.bin
└── ...
Create a partition_list.txt:
boot, boot.bin
system, system.bin
userdata, userdata.bin
prodnv, prodnv.bin
Run:
python sprd_pac.py -p partition_list.txt -o firmware.pac
You now have firmware.pac.
This is less common but possible if you’re dealing with low-level firmware or ROM conversion.
General approach – you would need:
Simpler alternative:
⚠️ This is uncommon — most
.pacin that sense are compiled from source, not converted directly from.bin.