Here is the reality check. The v1.61 updater was released years ago.
Responsive vendor support channels (forums, technical support lines) are also important, especially when updates interact unpredictably with complex audio systems.
This is usually caused by an unstable USB-to-Serial adapter chipset. driverack 260 updater v1.61
Complete Guide to the DriveRack 260 Updater v1.61: Ensuring Peak Performance
DriveRack 260 Firmware Mismatch - HARMAN Anytime Help Center Here is the reality check
The is a factory-installed firmware version for newer dbx DriveRack 260 units. While it does not introduce new user-facing audio processing features, it is a critical maintenance update required for the internal hardware of later manufacturing runs. Key Details of Version 1.61
Unplug the USB adapter, reinsert it, and restart the updater software. This is usually caused by an unstable USB-to-Serial
The most common issue encountered during this update is a communication failure between the PC and the DriveRack. Common Fixes
The newer dbx GUI software (Version 3.4, etc.) sometimes refuses to connect over certain serial chipsets. The standalone updater v1.61 uses a more basic handshake protocol, often succeeding where the full GUI fails.
to ensure you don't "brick" your unit during the serial transfer. Read community reviews on Sweetwater