Open the decrypted file in a hex editor. It should contain readable signatures like MStar-linux(recovery) .
The repack script does not dynamically resize partitions. If you add a 20MB file to system.img , but the original partition size in the header is fixed at 1GB, repack will either fail with an obscure error or produce a corrupt image. You must manually edit partition size tables (often in config.ini or partition_layout.txt ) – something not documented.
| Aspect | Rating | Comments | |--------|--------|----------| | | ⭐⭐⭐⭐ | Repacking a 1GB firmware takes ~30–60 seconds on a modern Linux machine. | | Extraction Accuracy | ⭐⭐⭐⭐ | Correctly extracts system, boot, recovery, and OEM partitions 95% of the time. | | Command Simplicity | ⭐⭐⭐ | Basic usage: ./mstar_repack -i extracted_folder -o new_firmware.pkg – straightforward. | | Community Support | ⭐⭐⭐ | XDA-Developers and 4PDA forums have many working examples for TCL, Hisense, and Xiaomi TVs. | mstar android tv firmware tools repack
With keys extracted, you can now decrypt the boot and recovery images:
The most reliable method for handling these binaries is using Python-based scripts and specialized utilities: Open the decrypted file in a hex editor
mkdir ./system_mount sudo mount -o loop system.raw.img ./system_mount Use code with caution. Performing Customizations
The core Android OS containing the framework, system apps, user interface, and default configurations. If you add a 20MB file to system
Inside this master file lies a complex layout of partitions. The core architecture generally consists of: