Are you trying to unpack a specific TV model's firmware, or are you having trouble with an "encrypted header" error? dipcore/mstar-bin-tool - GitHub
Firmware formats for Smart TVs evolve, and standard versions of these tools may fail to recognize specific header offsets or encryption methods. The "beta 3 patched" version usually includes: unpack mstar bin beta 3 patched
The firmware is likely encrypted or uses a newer padding method not supported by the Beta 3 patch. Are you trying to unpack a specific TV