Dump: Mstar Unpack Repack Tool ((link))

# Unpack MStar-packed rootfs partition ./mstar_unpack -f extracted/rootfs.bin -o rootfs/

To stay safe, before attempting any modifications. Before flashing any repackaged firmware, double-check the hardware version of your device to ensure compatibility. Proceed with caution by testing on a device you are willing to risk losing. Before performing large modifications, deactivate any factory "auto-update" features that could restore bloatware after a fresh flash.

Pack your modified folder back into a partition image using the exact same compression parameters as the original. For example, if it was a SquashFS partition, use: mksquashfs source_folder system.img -comp xz (or whatever compression algorithm the original firmware utilized). 2. Updating the Mstar Upgrade Script Dump Mstar Unpack Repack Tool

Here are the main tools used to modify MStar firmware.

Extract the individual partitions from the main firmware file. # Unpack MStar-packed rootfs partition

Copy your custom MstarUpgrade.bin to the root directory of the drive. Insert the USB drive into the TV's USB 2.0 port.

# View memory map cat /proc/mtd

Always keep a copy of the original dump.bin . A bad repack can permanently brick the device if you lose the original bootloader. Always test modifications on a donor board first.

: Run the following command in your terminal: python unpack.py Before performing large modifications

Always check the SHA256 hash against known community-shared values. Malicious actors have distributed trojanized versions that inject backdoors during repacking.

: If you don't have a firmware file but need to back up the system from a device, you can use a UART serial connection and tools like dd in the device's terminal: