The compressed package includes the firmware upgrade tool updatefw.exe, the upgrade operation video update_do_as_follows.mp4, and the latest version of the filter wheel firmware.
Please refer to the video for the upgrade procedure, and avoid power interruption during the upgrade.

FILTERWHEEL01A_V202_20250228.iic
This firmware version is applicable to products: filter wheels with LED small boards purchased after 2024, with circuit board silkscreen version FILTERWHEEL01A_V411. (When viewed from above after removing the cover plate, the version is identified if part of the wheel is obscured by a small circuit board.)
This version fixes an issue where the filter wheel might rotate indefinitely in previous versions.

If you encounter the filter wheel rotating indefinitely after flashing the above version, please verify whether your filter wheel hardware is the version without a small circuit board. You may need to flash the latest firmware compatible with older hardware:
FILTERWHEEL01A_V1.3.3.20231017.iic
This firmware version is applicable to: filter wheels purchased before 2024 without an LED small board, with the circuit board silkscreen version FILTERWHEEL01A_V410. The entire circuit board is directly visible after removing the filter wheel cover plate for this version.
This version fixes issues such as abnormal wheel hole switching present in earlier firmware (especially beta versions).

If the firmware update does not resolve your issue, please visit our official website to download and try updating the driver to the latest version.
If the problem persists, please contact our after-sales customer service (https://touptek-astro.com/supports).