Below is a link to the current firmware update file for the D² Digital System - DSQD receiver and the DBu and DHu transmitters. This is a zip file, after downloading extract it into a temporary folder. Use the Wireless Designer™ program to update firmware. Instructions are found here.

Note: This is a link to the Wireless Designer firmware update file, which bundles the latest firmware for multiple products.  Wireless Designer will know automatically choose the right firmware images from the file.

Click here for DSQD Firmware Revision History

Click here for DBu Firmware Revision History

Click here for DBu/E01 Firmware Revision History

Click here for DHu Firmware Revision History

Click here for DHu/E01 Firmware Revision History