Firmware discontinued
The manufacturer has stopped releasing firmware updates for this device.
You can still add it to your rig to keep an inventory and track its used market price.
No public user-downloadable firmware available. The A-800PRO has internal firmware, but updates are performed via Roland Service Net (service-center only, not a public download). The updates page lists only USB drivers, not device firmware.
Last firmware page →opens in a new tab — roland.com