powersoft KDSP Technical Notes page 4

After that update will appear a message asking for SHARC,
confirming with OK will start SHARC update, showing "Updating
SHARC" and a progress bar on the LCD display. The update lasts
several minutes.
At the end a message " Firmware update completed , press OK
to restart" will indicate that the procedure has been successfully
completed, before restarting the amplifier please remove the
firmware card.
To verify the correct updating go to SETUP-> HARDWARE
INFO and check that the displayed versions are exactly the same
as the ones on the firmware update smart card.
Please remember that if firmware update process stops before
its completion (for mains drop or any other problem), it is necessary
to restart it from the beginning (switching the amplifier off and
back on), as it could happen that 2 different firmware versions are
present in the different boards of the amplifier, causing possible
problems.
There will be no amplifier damage if the firmware update
will be interrupted, it will be just necessary to re-start the full
procedure by the beginning.
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