IBM DLT7000 Firmware Hex version 276A - V106 Updating the firmware on your IBM DLT 35/70GB is an easily applied process. There are several methods of applying firmware to the tape units. The D7_V106.img file is a binary file used by the DLT tools utility programs found in document MIGR-4GEGY8 on the IBM PC Support web site. By selecting back on your browser the files are found under the DLT Utilities selection.