: Retrieves AES and RSA-public keys from the MBOOT binary, which are necessary for decrypting recovery.img on newer builds with secure boot enabled. secure_partition.py
This monolithic file acts as a container holding several critical components:
# Extract from a full flash dump (e.g., dump.bin) ./mstar_dump -i dump.bin -o extracted/
To edit actual files (like boot animations, apps, or configuration strings), you must unpack the individual partition images. For partitions, use unsquashfs system.img . Dump Mstar Unpack Repack Tool
Connect your ISP programmer to the TV's VGA/ISP port and your computer.
The connects via serial or VGA and can read/write individual partitions at the bootloader level. This is the most reliable method for devices that won't accept USB upgrades.
The MStar ecosystem, despite being less documented than Qualcomm or MediaTek solutions, powers an enormous installed base of consumer electronics. The ability to dump, unpack, and repack MStar firmware opens doors: : Retrieves AES and RSA-public keys from the
Windows-based graphical utilities designed for quick extraction. The Unpacking Workflow
The tool will bundle the files and calculate the new CRC32 checksums.
Partitions dedicated to local environment settings, panel display parameters ( ini files), and hardware peripheral rules. Connect your ISP programmer to the TV's VGA/ISP
Ensure you have Python installed on your system. Clone or download your chosen script into a dedicated working directory alongside your firmware file. 2. Execute the Unpack Command
For partitions, use simg2img (if sparse) or mount it directly in a Linux environment. Step 3: Modifying the Code (The "Hack")
This comprehensive guide will walk you through everything: what MStar firmware looks like, the main tool families at your disposal, step-by-step workflows for unpacking and repacking, advanced security considerations like AES encryption and RSA signing, troubleshooting common pitfalls, and where to find these tools safely.
: Python 3.8 is highly recommended for the best compatibility with modern scripts. mstar-bin-tool : Download the latest master branch from dipcore's GitHub UBoot_win_Tools