Getting the Firmware of a VTech/LeapFrog LeapStart/Magibook
3 days ago
- #LeapFrog
- #reverse-engineering
- #firmware
- Introduction to reverse engineering a LeapFrog LeapStart/VTech MagiBook device.
- Device overview: reading aid for children with micro USB, audio jack, and dot pattern recognition technology.
- Motivation: practice reverse engineering skills and explore firmware before graduation.
- Firmware extraction found in computer cache after a device update.
- Key files identified: 'System', 'FileSys', and others hinting at firmware structure.
- 'FileSys' is a FAT32 image with minimal data in small files.
- 'System' file contains ARM function prologues and strings indicating C++ and uC/OS-II kernel usage.
- Next steps include determining ISA, understanding file format, and reverse engineering dot-recognition and audio playback code.
- Goal to add custom audio if feasible.