Always export your current device configuration before starting. A mismatch or update often resets the drive to factory settings.
For specific troubleshooting, you can refer to the ACS Software Quick Start Guide from Tektronix or the Brivo Support Center for access control. How to upgrade ACS & ACSI Firmware ACS-009.7z
Establish a connection to the drive/controller via USB or Ethernet. ACS-009.7z
Before extracting or installing, confirm your hardware model. "ACS-009" usually refers to a specific controller version or part number in series like: ACS-009.7z
Firmware updates are critical and can "brick" your device if interrupted.
Check the software’s "About" or "Information" box to ensure the firmware version matches the expected release.