Navigate to /system/app/ and /system/priv-app/ to delete heavy telemetry apps or unwanted pre-installed streaming services.
extract_keys.py : Retrieves AES and RSA keys from the MBOOT binary, which are necessary for decrypting partitions like boot.img or recovery.img .
[Header: 256 bytes] - Magic: "MSTAR" - Version - Partition count - Partition entries (name, offset, size, CRC) [Data: partitions concatenated] [Footer: global CRC]
To help tailor this guide or troubleshoot any issues you are experiencing, let me know: What are you working with?
: Used to extract individual partitions (like MBOOT , boot.img , and system.img ) from the main .bin file. mstar android tv firmware tools repack
:Use the unpack.py script to extract the contents of your original .bin file.
The general workflow for modifying MStar firmware involves unpacking, editing, and repacking. dipcore/mstar-bin-tool - GitHub
The recovery console used for factory resets and system updates.
Modern Android TV firmwares often use "sparse" images to save space. For complex modifications, you can convert a sparse system.img to a raw ext4 image, mount it, make changes, and then convert it back. Use the simg2img (convert sparse to raw) and img2simg (raw to sparse) tools for this purpose, being mindful of the potential for partition bloat and ensuring the final image fits within its allocated flash memory. : Used to extract individual partitions (like MBOOT , boot
Before flashing any experimental or deeply customized repack, connect a USB-to-TTL adapter to the TV's mainboard UART pins (TX/RX/GND). This allows you to monitor the bootloader live, interrupt the boot sequence, and execute recovery commands if the Android OS fails to load.
After unpack, you get standard Android sparse images.
Converts a sparse Android image into a raw, mountable EXT4 file system image.
This command decompiles the CtvUpgrade.bin into the output_folder , producing a config.ini and various image files ( system.img , boot.img , etc.). Step 3: Modify the Firmware You can now open output_folder to modify files. If you share with third parties
Tools and methods are for educational/fair-use purposes only. Modifying firmware may void warranty and brick your device.
Once your modifications are complete, calculate the exact size of the mounted partition. Then, unmount it and use make_ext4fs or mkfs.ext4 to compile the directory back into a raw partition image. Ensure you use the correct file contexts mapping to maintain Android security permissions.
The benefits of using MStar Android TV firmware tools repack are numerous:
Replace the boot logo images in the designated partition. Step 4: Repack the Firmware
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
MStarBinTool-GUI (by chfl4gs) – https://github.com/chuqian123/MStarBinTool-GUI MStar Firmware Tools (4pda) – https://4pda.to/forum/index.php?showtopic=932428 MSTool+ (Telegram) – often updated by Russian devs