Lectrosonics DM1612 Reference Manual page 32

DM Series Digital Matrix Processors
This is followed by the DSP firmware update.
The text over the progress bar indicates
which stage is in progress.
The entire process will take 15 minutes or so.
When the update is finished, a notification
message will appear:
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Follow the instructions in the message to
verify that the DM1624 restarts with the
updated firmware version. Click OK to
dismiss the message. At this point the
process is complete and the Wizard will be
ready to close:
Click Finish to close the Wizard. At this point
you can connect to the newly updated
DM1624 with the control panel. The updated
firmware version number should appear in
the status bar.