To help me give you the best advice for your project, please let me know: What is the of your Mstar chip or TV? Are you using Windows or Linux for this project?
Flash the original, unmodified dump file via ISP programmer to restore the TV to a working state.
Before you can unpack anything, you need to acquire the firmware. If you cannot find the official firmware online, you can dump it directly from a working TV board using hardware tools. 1. Hardware Requirements
Automatically detects the structure and offsets of the firmware container.