If you can please try the Batch Tool to do the FW update. This does a wipe of the internal memory and a clean install. I have also reported this.
eh... where do i get th Batch Tool???? any instructions to follow???? pls advice
http://www.head-fi.org/t/786443/ibasso-dx80-impressions-and-reviews-and-discussion-new-fw-1-4-2-link-1st-page#post_12044436