TOPIC:

I tried to update my DDRC-22D firmware, but it was failed due to my PC malfunction.

After fail, my PC can not connect to DDRC-22D with DDRC-22D utility.

I'm sure there is no issue with USB cable, USB connection, Power cable.

Is there any method factory reset or other to solve the problem?

I'd suggest you contact miniDSP support via the Support link at the top of the page.

If your PC can no longer connect to the DDRC-22D after a failed firmware update, you may need to perform a factory reset on the device to restore its settings to their default values.

To perform a factory reset on the DDRC-22D, follow these steps:

Power off the DDRC-22D.
Hold down the "Config" button on the front panel.
While holding down the "Config" button, power on the DDRC-22D.
Continue to hold down the "Config" button until the front panel display shows "Factory Reset" (this may take up to 30 seconds).
Release the "Config" button.

Once the factory reset is complete, you should be able to connect to the DDRC-22D with the DDRC-22D utility again. You will need to set up your preferences and configuration settings again, so make sure you have a backup of these settings before performing the reset if possible.

---

connect dots
roller baller