Bada OS Reconstruction Project

Reverse engineering and reconstruction of Samsung Bada OS 1.2 for the GT-S8500 Wave.

Legal Notice

All original Bada OS components, libraries, trademarks, and assets are property of Samsung Electronics Co., Ltd. This project is a reverse engineering effort for educational and preservation purposes only. Samsung discontinued Bada OS in 2013.

This project does not claim ownership of any Samsung intellectual property.

Credits

• Samsung Electronics — Original Bada OS, OSP framework, GWES window server, all system libraries and applications
• Qualcomm — MSM7227 chipset and AMSS baseband
• Broadcom — BCM4329 WiFi firmware
• The Open Source Community — Linux kernel, libgcc, libstdc++, OpenSSL (libeay32), libcurl, sqlite, expat, zlib — all included in the original firmware

What is Bada OS?

Bada was a mobile operating system developed by Samsung Electronics, launched in 2010 for the Wave series of smartphones. It was discontinued in 2013 and merged into Tizen.

Bada OS is built on:

• Linux kernel 2.6.32 (Samsung modified)
• GWES window server (Windows CE style, 101 classes)
• Chromium-style IPC (Pickle, SyncMessage)
• OSP (Open Service Platform) framework

What we extracted

• 73 system libraries (.so) from ShpApp.app
• 9 preinstalled apps (Facebook, Twitter, Asphalt 5, SevenIM, Daily Briefing, etc)
• Complete OSP framework (FOsp.so, mappserver.so, ShpWinServer.so)
• System resources (wallpapers, ringtones, app icons)
• Full filesystem from FactoryFs.ffs

Tools

• extract_pfs.py — Extracts Samsung PFS filesystem format (FimBIN/PFSFFFS)
• analyze_libs.py — Analyzes OSP library symbols

How to reproduce

1. Download GT-S8500 firmware from Archive.org: https://archive.org/details/s8500-firmwares
2. Run extract_pfs.py on FactoryFs_S8500_Open_Europe_Common.ffs
3. Run extract_pfs.py on ShpApp.app
4. System libraries will be in SystemFS/Osp/

License

Tools and documentation: MIT License All Samsung assets: property of Samsung Electronics