Dump Mstar Unpack Repack Tool

The Ultimate Guide to Mstar Firmware: Dump, Unpack, and Repack Tools

In the world of embedded systems, particularly within the LCD television, monitor, and automotive infotainment sectors, Mstar (now part of MediaTek) chipsets reign supreme. These SoCs (System on Chips) control everything from HDMI switching to image processing.

For the average user, the firmware is just a black box. But for technicians, hobbyists, and security researchers, the firmware is a locked room full of drivers, root file systems, and boot logos. To open that room, you need the "Dump Mstar Unpack Repack Tool." Dump Mstar Unpack Repack Tool

This article provides a comprehensive deep dive into the ecosystem of tools required to extract (dump), deconstruct (unpack), modify, and rebuild (repack) Mstar-based firmware. The Ultimate Guide to Mstar Firmware: Dump, Unpack,

5.4 Repacking

# Add back MStar headers and rebuild full image
./mstar_repack -p extracted/ -o new_firmware.bin

Step-by-Step Workflow Example

Scenario: You want to change the boot logo on a Hisense TV (Mstar MSD368). Step-by-Step Workflow Example Scenario: You want to change

  1. Dump: Connect CH341A to the SPI flash (Winbond 25Q32). Use NeoProgrammer to read the chip. Save as original.bin.
  2. Unpack: Open original.bin with MStarBinTool_GUI.exe. Click "Extract". You see logo.bmp in the output folder.
  3. Edit: Create a new 1920x1080 bitmap. Save it as new_logo.bmp.
  4. Repack: In MStarBinTool, replace the old logo with the new one. Click "Repack". The tool outputs modified.bin.
  5. Flash: Use Mstar ISP Tool via UART. Load modified.bin. Click "Erase" -> "Write".
  6. Verify: Reboot the TV. Your logo appears.

Part 1: The Dump Tool – Capturing the Binary

You cannot unpack what you do not own. Most manufacturers do not provide public firmware downloads. Therefore, the first step is Dumping.

Typical Use Cases