Hagibis MS2130 sharpening disabler firmware patch

This is a firmware patch for a Hagibis-branded MS2130 HDMI-to-USB capture dongle. It disables the chip's built-in sharpening filter, which adds visible halos around text and other high-contrast edges.

The patch changes only the sharpening setting. Scaling works exactly as it does with the original firmware, and the device's supported resolutions and frame rates remain unchanged.

Flashing

Build the cli utility from BertoldVdb/ms-tools.

Back up your firmware

Before writing anything, back up your existing firmware:

./cli --log-level=7 read FLASH 0 --filename=backup.bin

Write the patched firmware

Apply the patched firmware:

./cli --log-level=7 --no-patch write-file FLASH 0 /path/to/hagibis_ms2130_patched_nosharp.bin

After the write completes successfully, unplug and reconnect the dongle.

To restore your own backup, use the same write command with the file you read from the device:

./cli --log-level=7 --no-patch write-file FLASH 0 backup.bin

Screenshots

Patched firmware (sharpening disabled)

Original firmware (sharpening enabled)

For the complete 1920x1080 captures, see nosharp.png and original.png.

Rebuilding the patched firmware

Python 3 is the only requirement:

python3 patch_hagibis.py \
  hagibis_ms2130_original.bin \
  hagibis_ms2130_patched_nosharp.bin

The patcher will refuse to modify a firmware file that doesn't exactly match what is expected.

References

• ms2130 patcher: https://github.com/steve-m/ms2130_patcher
• hsdoah: https://github.com/steve-m/hsdaoh
• Flashing tool: https://github.com/BertoldVdb/ms-tools